compiz crashed with SIGSEGV in PrivateWindow::processMap()

[Shree Om]

Binary package hint: unity

it just popped up on the screen. i had just installed the beta natty.

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: unity 3.8.6-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic i686
NonfreeKernelModules: fglrx wl
Architecture: i386
Date: Mon Apr 11 21:29:05 2011
ExecutablePath: /usr/bin/compiz
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Release i386 (20101007)
ProcCmdline: compiz
ProcEnviron:
 LANGUAGE=en_BW:en
 LANG=en_BW.UTF-8
 SHELL=/bin/bash
Signal: 11
SourcePackage: unity
StacktraceTop:
 PrivateWindow::processMap() ()
 CompScreen::handleEvent(_XEvent*) ()
 PrivateCompositeScreen::handleEvent(_XEvent*) () from /usr/lib/compiz/libcomposite.so
 CompScreen::handleEvent(_XEvent*) ()
 PrivateGLScreen::handleEvent(_XEvent*) () from /usr/lib/compiz/libopengl.so
Title: compiz crashed with SIGSEGV in PrivateWindow::processMap()
UpgradeStatus: Upgraded to natty on 2011-04-11 (0 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare

[Mads Peter Rommedahl (lhademmor)]

This occurs to me as well. Did a clean install (didn't upgrade) to beta natty, and this has happened at least twice in the last two days