Erro ao inicializar o gnome do

Boa tarde, estou trabalhando com gtkmm e após instalar as libs do gtkmm e as libs do gtk+3.8.4 no meu ubuntu 12.04 começou a aparecer este erro na inicialização do gnome do.

at Mono.Addins.ExtensionNode.GetChildObjectsInternal (System.Type arrayElementType, Boolean reuseCachedInstance) [0x00000] in <filename unknown>:0
Error while getting object for node in path '/Do/Service'.
System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> GLib.GException: Formato de arquivo de imagem não reconhecido
at Gtk.IconInfo.LoadIcon () [0x00000] in <filename unknown>:0
at Do.Platform.Linux.TrayIconService..ctor () [0x00000] in <filename unknown>:0
at (wrapper managed-to-native) System.Reflection.MonoCMethod:InternalInvoke (System.Reflection.MonoCMethod,object,object[],System.Exception&)
at System.Reflection.MonoCMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>:0
--- End of inner exception stack trace ---
at System.Reflection.MonoCMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>:0
at System.Reflection.MonoCMethod.Invoke (BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>:0
at System.Reflection.ConstructorInfo.Invoke (System.Object[] parameters) [0x00000] in <filename unknown>:0
at System.Activator.CreateInstance (System.Type type, Boolean nonPublic) [0x00000] in <filename unknown>:0
at System.Activator.CreateInstance (System.Type type) [0x00000] in <filename unknown>:0
at Mono.Addins.TypeExtensionNode.CreateInstance () [0x00000] in <filename unknown>:0
at Mono.Addins.InstanceExtensionNode.GetInstance () [0x00000] in <filename unknown>:0
at Mono.Addins.InstanceExtensionNode.GetInstance (System.Type expectedType) [0x00000] in <filename unknown>:0
at Mono.Addins.ExtensionNode.GetChildObjectsInternal (System.Type arrayElementType, Boolean reuseCachedInstance) [0x00000] in <filename unknown>:0
Error while getting object for node in path '/Do/Service'.
System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> GLib.GException: Formato de arquivo de imagem não reconhecido
at Gtk.IconInfo.LoadIcon () [0x00000] in <filename unknown>:0
at Do.Platform.Linux.TrayIconService..ctor () [0x00000] in <filename unknown>:0
at (wrapper managed-to-native) System.Reflection.MonoCMethod:InternalInvoke (System.Reflection.MonoCMethod,object,object[],System.Exception&)
at System.Reflection.MonoCMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>:0
--- End of inner exception stack trace ---
at System.Reflection.MonoCMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>:0
at System.Reflection.MonoCMethod.Invoke (BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>:0
at System.Reflection.ConstructorInfo.Invoke (System.Object[] parameters) [0x00000] in <filename unknown>:0
at System.Activator.CreateInstance (System.Type type, Boolean nonPublic) [0x00000] in <filename unknown>:0
at System.Activator.CreateInstance (System.Type type) [0x00000] in <filename unknown>:0
at Mono.Addins.TypeExtensionNode.CreateInstance () [0x00000] in <filename unknown>:0
at Mono.Addins.InstanceExtensionNode.GetInstance () [0x00000] in <filename unknown>:0
at Mono.Addins.InstanceExtensionNode.GetInstance (System.Type expectedType) [0x00000] in <filename unknown>:0
at Mono.Addins.ExtensionNode.GetChildObjectsInternal (System.Type arrayElementType, Boolean reuseCachedInstance) [0x00000] in <filename unknown>:0
[Error 13:51:59.014] [AbstractKeyBindingService] Failed to bind "Summon in Text Mode" to ""
[Error 13:51:59.034] Encountered error setting GConf key Do/Platform/Common/AbstractKeyBindingService/Copiar_para_a_área_de_transferência: Chave ou diretório inválido: "/apps/gnome-do/preferences/Do/Platform/Common/AbstractKeyBindingService/Copiar_para_a_área_de_transferência": "\303" não é um caractere ASCII, logo não é permitido em nomes de chave
[Error 13:51:59.035] Encountered error setting GConf key Do/Platform/Common/AbstractKeyBindingService/Colar_da_Área_de_Transferência: Chave ou diretório inválido: "/apps/gnome-do/preferences/Do/Platform/Common/AbstractKeyBindingService/Colar_da_Área_de_Transferência": "\303" não é um caractere ASCII, logo não é permitido em nomes de chave
[Error 13:51:59.036] Encountered error setting GConf key Do/Platform/Common/AbstractKeyBindingService/Próximo_Painel: Chave ou diretório inválido: "/apps/gnome-do/preferences/Do/Platform/Common/AbstractKeyBindingService/Próximo_Painel": "\303" não é um caractere ASCII, logo não é permitido em nomes de chave
[Error 13:51:59.037] Encountered error setting GConf key Do/Platform/Common/AbstractKeyBindingService/Próximo_Item: Chave ou diretório inválido: "/apps/gnome-do/preferences/Do/Platform/Common/AbstractKeyBindingService/Próximo_Item": "\303" não é um caractere ASCII, logo não é permitido em nomes de chave
[Error 13:51:59.037] Encountered error setting GConf key Do/Platform/Common/AbstractKeyBindingService/Último_Item: Chave ou diretório inválido: "/apps/gnome-do/preferences/Do/Platform/Common/AbstractKeyBindingService/Último_Item": "\303" não é um caractere ASCII, logo não é permitido em nomes de chave
[Error 13:51:59.038] Encountered error setting GConf key Do/Platform/Common/AbstractKeyBindingService/Últimos_5_Resultados: Chave ou diretório inválido: "/apps/gnome-do/preferences/Do/Platform/Common/AbstractKeyBindingService/Últimos_5_Resultados": "\303" não é um caractere ASCII, logo não é permitido em nomes de chave
[Error 13:51:59.038] Encountered error setting GConf key Do/Platform/Common/AbstractKeyBindingService/Próximos_5_Resultados: Chave ou diretório inválido: "/apps/gnome-do/preferences/Do/Platform/Common/AbstractKeyBindingService/Próximos_5_Resultados": "\303" não é um caractere ASCII, logo não é permitido em nomes de chave
Error while getting object for node in path '/Do/Service'.
System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> GLib.GException: Formato de arquivo de imagem não reconhecido
at Gtk.IconInfo.LoadIcon () [0x00000] in <filename unknown>:0
at Do.Platform.Linux.TrayIconService..ctor () [0x00000] in <filename unknown>:0
at (wrapper managed-to-native) System.Reflection.MonoCMethod:InternalInvoke (System.Reflection.MonoCMethod,object,object[],System.Exception&)
at System.Reflection.MonoCMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>:0
--- End of inner exception stack trace ---
at System.Reflection.MonoCMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>:0
at System.Reflection.MonoCMethod.Invoke (BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>:0
at System.Reflection.ConstructorInfo.Invoke (System.Object[] parameters) [0x00000] in <filename unknown>:0
at System.Activator.CreateInstance (System.Type type, Boolean nonPublic) [0x00000] in <filename unknown>:0
at System.Activator.CreateInstance (System.Type type) [0x00000] in <filename unknown>:0
at Mono.Addins.TypeExtensionNode.CreateInstance () [0x00000] in <filename unknown>:0
at Mono.Addins.InstanceExtensionNode.GetInstance () [0x00000] in <filename unknown>:0
at Mono.Addins.InstanceExtensionNode.GetInstance (System.Type expectedType) [0x00000] in <filename unknown>:0
at Mono.Addins.ExtensionNode.GetChildObjectsInternal (System.Type arrayElementType, Boolean reuseCachedInstance) [0x00000] in <filename unknown>:0
Stacktrace:

at (wrapper managed-to-native) Gtk.Application.gtk_main () <0xffffffff>
at Gtk.Application.Run () <0x0000b>
at Do.Do.Main (string[]) <0x001eb>
at (wrapper runtime-invoke) <Module>.runtime_invoke_void_object (object,intptr,intptr,intptr) <0xffffffff>

Native stacktrace:

Do: Fatal IO error 11 (Recurso temporariamente indisponível) on X server :0.

alguem sabe o que pode ser?