I also have this bug. Updated to 10.10 and had problem with X so am running novoeau due a problem with the legacy drivers for my old MX440 nvidia card.
Tried the clearlooks theme and while it appeared to make a small improvement - you can see the progress bar actually moving, Xorg is running at 75% CPU utilization while the progress bar is in the "building data structures" phase. This occurs regardless of weather update manager is the visible window or not. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/595845 Title: libcairo2 1.9.10 makes Ubuntu 10.10 slow -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs