Panel coredump on solaris

[Maciej Stachowiak <mstachow alum mit edu>]

I suspect this might be related to my local setup so I am not filing
a bug report yet. If I run the panel on Solaris, select 
"Global properties..." from the menu, and click on anyof the "Icon"
tabs, I get an error:



Gdk-ERROR **: BadMatch (invalid parameter attributes)
  serial 7928 error_code 8 request_code 62 minor_code 0

aborting...

Gdk-WARNING **: GdkWindow 0xbc00069 unexpectedly destroyed

[... more Gdk-WARNING's like the above ...]

and a coredump with this backtrace:

#0  0xeee740d8 in kill ()
#1  0xeee3a584 in abort ()
#2  0xef6582c4 in g_logv (log_domain=0xef0ddaa8 "Gdk", log_level=G_LOG_LEVEL_ERROR, format=0x0, args1=0x6)
    at /u/racerx1/local/src/glib-1.1.15/gmessages.c:382
#3  0xef65835c in g_log (log_domain=0xef0ddaa8 "Gdk", log_level=G_LOG_LEVEL_ERROR, 
    format=0xef0ddbc8 "%s\n  serial %ld error_code %d request_code %d minor_code %d\n")
    at /u/racerx1/local/src/glib-1.1.15/gmessages.c:399
#4  0xef0bb750 in gdk_x_error (display=0xede68, error=0xefffdad0)
    at /u/racerx1/local/src/gtk+-1.1.15/gdk/gdk.c:1013
#5  0xeefb9b40 in _XError ()
#6  0xeefb6b5c in _XEventsQueued ()
#7  0xeefa93d4 in XPending ()
#8  0xef0c9c14 in gdk_event_check (source_data=0x0, current_time=0xefffe4e0)
    at /u/racerx1/local/src/gtk+-1.1.15/gdk/gdkevents.c:2031
#9  0xef655624 in g_main_iterate (block=978344, dispatch=1) at /u/racerx1/local/src/glib-1.1.15/gmain.c:813
#10 0xef6559b0 in g_main_run (loop=0x12daf0) at /u/racerx1/local/src/glib-1.1.15/gmain.c:905
#11 0xef1bb7e4 in gtk_main () at /u/racerx1/local/src/gtk+-1.1.15/gtk/gtkmain.c:457
#12 0x1ddc8 in main (argc=1, argv=0xefffe6c4) at /u/racerx1/local/src/gnome-core-0.99.8.1/panel/main.c:172

Can anyone suggest what might be going wrong?
Relevant versions I'm using include

glib-1.1.15
gtk+-1.1.15
gnome-libs-0.98.1
gnome-core-0.98.1
imlib-1.9.3

More info available on request. I'd appreciate a pointer in the right
direction in case anyone knows what's up, otherwise I'll try running under
Gdb and see what's up.

 - Maciej