I'm assuming the issue is related to Compiz, but I'm not 100% sure. When I'm switching workspaces, it occasionally locks up (becoming more frequent). Most of the time, I'm going from the current one down (Ctrl+Alt+Down Arrow), and it freezes mid slide. Typically, I'm able to correct things by backing out to a terminal then returning (Ctrl+Alt+F1, pause, Alt+F7), but sometimes when I return the dual screen setup acts as one large screen (windows are stretched to the full width of both screens) and many of the windows collect on the first workspace.
Ubuntu 11.04 (Classic)
All packages up-to-date.
If there are any logs/etc that would be helpful, let me know.
DistroRelease: Ubuntu 11.04
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
InstallationMedia_: Ubuntu 10.04 LTS "Lucid Lynx" - Release amd64 (20100429)
Package: compiz 1:0.9.4+bzr20110606-0ubuntu1~natty2
ProcVersionSignature: Ubuntu 2.6.38-10.46-generic 22.214.171.124
ProcVersionSignature_: Ubuntu 2.6.38-10.46-generic 126.96.36.199
Tags: natty natty ubuntu
Uname: Linux 2.6.38-10-generic x86_64
UnreportableReason: Please work this issue through technical support channels first.
UpgradeStatus: Upgraded to natty on 2011-05-02 (84 days ago)
UserGroups: adm admin audio cdrom dialout dip fuse lpadmin netdev plugdev sambashare