This should be fixed in the latest packages in hardy.
** Changed in: compiz (Ubuntu)
Status: Incomplete => Fix Released
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compiz.real crashed with SIGSEGV in cairo_destroy()
https://bugs.launchpad.net/bugs/192264
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Thanks for your bug report. Please try to obtain a backtrace
http://wiki.ubuntu.com/DebuggingProgramCrash and attach the file to the
bug report. This will greatly help us in tracking down your problem.
** Attachment removed: "CoreDump.gz"
http://launchpadlibrarian.net/12023395/CoreDump.gz
**
