GNU Emacs window does not appear on my current workspace

[Eric Buist]

Binary package hint: emacs23

Almost each time I start GNU Emacs, I can see its window popping up on the screen then it disappears instantly. Initially, I thought Emacs core dumped, but in fact, it was automatically (wrongly) moved to another (random) workspace! I then have to look at my four workspaces to retrieve the Emacs window and put it back on the first workspace.
The bug only happens while Compiz is turned on; it did not happen when Compiz was off.
I tried to google about this, but nothing; people seems to run with Compiz disabled all the times or I am alone with this bug!
I am using Ubuntu 10.10 64 bits version, with the NVIDIA closed-source graphic driver.

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: emacs 23.1+1-4ubuntu7.1+maverick1
ProcVersionSignature: Ubuntu 2.6.35-25.44-genusername 2.6.35.10
Uname: Linux 2.6.35-25-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
Date: Sat Feb 26 10:30:52 2011
PackageArchitecture: all
ProcEnviron:
 PATH=(custom, user)
 LANG=fr_CA.utf8
 SHELL=/bin/bash
SourcePackage: emacs23

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.