emerald crashed with SIGSEGV in gdk_gc_new_with_values()

Binary package hint: emerald

crash happened in ubuntu hardy; emerald 0.7.2-0ubuntu1 + Ati driver 8.3
occurs when fast switching between windows with alt+tab:

DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=8.04
DISTRIB_CODENAME=hardy
DISTRIB_DESCRIPTION="Ubuntu hardy (development branch)"

ProblemType: Crash
Architecture: i386
CrashCounter: 1
Date: Sat Mar 8 17:10:19 2008
Disassembly: 0x0:
DistroRelease: Ubuntu 8.04
ExecutablePath: /usr/bin/emerald
NonfreeKernelModules: fglrx cdrom
Package: emerald 0.7.2-0ubuntu1
PackageArchitecture: i386
ProcCmdline: /usr/bin/emerald --replace
ProcCwd: /home/mani
ProcEnviron:
 PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
 LANG=de_AT.UTF-8
 SHELL=/bin/bash
Signal: 11
SourcePackage: emerald
StacktraceTop:
 ?? ()
 gdk_gc_new_with_values () from /usr/lib/libgdk-x11-2.0.so.0
 gdk_gc_new () from /usr/lib/libgdk-x11-2.0.so.0
 ?? ()
 ?? ()
Title: emerald crashed with SIGSEGV in gdk_gc_new_with_values()
Uname: Linux 2.6.24-11-generic i686
UserGroups: adm admin audio cdrom dialout dip floppy lpadmin netdev plugdev powerdev scanner video