compiz.real crashed with SIGSEGV

[Rune]

Binary package hint: compiz

If I logout (from the menu or with [CTRL]+[ALT]+Del or with killall Xorg) logging back in causes the computer too freeze.
Sometimes the mouse works, but I can do nothing but manually power off. I use the properitary ATI driver, but it happens with the other one aswell.
It happened from a fresh installed Hardy even without compiz turned on. In fact metacity wouldn't even get back to a new login screen. The computer would freeze even before. This (with the properitary ATI driver and compiz) is the only time a crash report button popped up after the reboot so I clicked the button.

ProblemType: Crash
Architecture: i386
Date: Wed Apr 16 16:00:15 2008
DistroRelease: Ubuntu 8.04
ExecutablePath: /usr/bin/compiz.real
NonfreeKernelModules: fglrx
Package: compiz-core 1:0.7.4-0ubuntu5
PackageArchitecture: i386
ProcCmdline: /usr/bin/compiz.real --ignore-desktop-hints --replace --indirect-rendering --sm-client-id default0 core ccp
ProcEnviron:
 PATH=/home/username/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
 LANG=en_US.UTF-8
 SHELL=/bin/bash
Signal: 11
SourcePackage: compiz
Stacktrace:
 #0 0x08055a80 in ?? ()
 #1 0x0807c6d0 in ?? ()
 #2 0x00000003 in ?? ()
 #3 0x0000009b in ?? ()
 #4 0x00000000 in ?? ()
StacktraceTop:
 ?? ()
 ?? ()
 ?? ()
 ?? ()
 ?? ()
Title: compiz.real crashed with SIGSEGV
Uname: Linux 2.6.24-16-generic i686
UserGroups: adm admin audio cdrom dialout dip floppy fuse lpadmin plugdev video