Comment 33 for bug 575160

User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.10) Gecko/20100506 SUSE/2.0.5-1.4 SeaMonkey/2.0.5

may be this is a duplicate of bug 598372.

rpm -qa | grep -i seamonkey
seamonkey-2.0.5-1.4.x86_64
seamonkey-irc-2.0.5-1.4.x86_64

After some browsing seamonkey crashes.
A start with gdb showed this messages:
...
[Thread 0x7f67a8eff710 (LWP 9652) exited]
[Thread 0x7f679e1ff710 (LWP 9648) exited]
[New Thread 0x7f679e1ff710 (LWP 9842)]
The program 'seamonkey-bin' received an X Window System error.
This probably reflects a bug in the program.
The error was 'RenderBadPicture (invalid Picture parameter)'.
  (Details: serial 144736 error_code 158 request_code 148 minor_code 7)
  (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.)
[Thread 0x7f679e1ff710 (LWP 9842) exited]
[Thread 0x7f67b23ef710 (LWP 9451) exited]
[Thread 0x7f67b2bf0710 (LWP 9433) exited]
[Thread 0x7f67a03ff710 (LWP 9381) exited]
[Thread 0x7f67b9299710 (LWP 9233) exited]
[Thread 0x7f67b86f4710 (LWP 9234) exited]
[Thread 0x7f67b79ff710 (LWP 9235) exited]
[Thread 0x7f67b5578710 (LWP 9238) exited]
[Thread 0x7f67b4d77710 (LWP 9239) exited]
[Thread 0x7f67b35ff710 (LWP 9244) exited]
[Thread 0x7f67b6cf9710 (LWP 9247) exited]
[Thread 0x7f67a86fd710 (LWP 9251) exited]
....

I will try to get a reasonable backtrace.

Reproducible: Sometimes

Steps to Reproduce:
1.start seamonkey
2.browse few web pages.