meu lazarus nao abre. (k)ubuntu hardy.

[jpbrum2000]

quando tento abrir meu lazarus instalado pelo synaptic ocorre o seguinte erro:

joao@pcdojoao:~$ lazarus-ide
Gdk-ERROR **: BadMatch (invalid parameter attributes)
  serial 658 error_code 8 request_code 62 minor_code 0
Locking assertion failure.  Backtrace:
#0 /usr/lib/libxcb-xlib.so.0 [0xb7b78767]
#1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_lock+0x2e) [0xb7b7881e]
#2 /usr/lib/libX11.so.6 [0xb7ea7518]
#3 /usr/lib/libX11.so.6(XSync+0x25) [0xb7e9c205]
#4 /usr/lib/libgdk-1.2.so.0(gdk_flush+0x2a) [0xb7f6682a]
#5 /usr/lib/libgdk-1.2.so.0(gdk_image_destroy+0x95) [0xb7f6e515]
#6 /usr/lib/libgdk-1.2.so.0(gdk_image_exit+0x2a) [0xb7f6e5da]
#7 /usr/lib/libgdk-1.2.so.0 [0xb7f5b305]
#8 /lib/tls/i686/cmov/libc.so.6(exit+0xd4) [0xb7bac084]
#9 /usr/lib/libgdk-1.2.so.0 [0xb7f5b4d1]
#10 /usr/lib/libX11.so.6(_XError+0xfe) [0xb7ea073e]
#11 /usr/lib/libX11.so.6 [0xb7ea7e5c]
#12 /usr/lib/libX11.so.6(_XEventsQueued+0x4f) [0xb7ea871f]
#13 /usr/lib/libX11.so.6(XPending+0x62) [0xb7e919d2]
#14 /usr/lib/libgdk-1.2.so.0 [0xb7f67574]
#15 /usr/lib/libglib-1.2.so.0 [0xb7f9b030]
#16 /usr/lib/libgtk-1.2.so.0(gtk_events_pending+0x37) [0xb7dc4c77]
#17 lazarus-ide [0x81997fe]
#18 lazarus-ide [0x81997ce]
#19 lazarus-ide [0x8088269]
joao@pcdojoao:~$


o que pode ser isso ?