Mozilla crashes when launch

[GuTi]

Hello, I am using FreeBSD 6.0 with Mozilla-1.7.12,2. Below  is the error when I tried to execute my mozilla. 

(Gecko:7308):  Gdk-WARNING **: gdk_property_get(): length value has wrapped in calculation (did  you pass G_MAXLONG?) 
The program 'Gecko' received an X Window System error.  
This probably reflects a bug in the program. 
The error was 'BadDrawable  (invalid Pixmap or Window parameter)'. 
(Details: serial 1440 error_code 9  request_code 66 minor_code 0) 
(Note to programmers: normally, X errors are  reported asynchronously; 
that is, you will receive the error a while after  causing it. 
To debug your program, run it with the --sync command line  
option to change this behavior. You can then get a meaningful 
backtrace  from your debugger if you break on the gdk_x_error() function.) 

Any  suggestions? I have tried uninstall and reinstall and it is still the same. This  apply to my Thunderbird(1.06) as well. But Thunderbird had generated another  similar error. 

(thunderbird-bin:15307): Gdk-WARNING **:  gdk_property_get(): length value has wrapped in calculation (did you pass  G_MAXLONG?) 
The program 'Gecko' received an X Window System error. 
This  probably reflects a bug in the program. 
The error was 'BadDrawable (invalid  Pixmap or Window parameter)'. 
(Details: serial 1371 error_code 9  request_code 66 minor_code 0) 
(Note to programmers: normally, X errors are  reported asynchronously; 
that is, you will receive the error a while after  causing it. 
To debug your program, run it with the --sync command line  
option to change this behavior. You can then get a meaningful 
backtrace  from your debugger if you break on the gdk_x_error() function.) 

I have  run it under --sync command but it doesn't generate anything. 
Do let me know  if you guys want more information.




Best Regards,
Guti
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