I'm afraid you probably won't get much help reporting KDE 4.1 bugs on Launchpad--it's still a beta, and the PPA packages are not part of the main Kubuntu release. You might want to try bugs.kde.org.
Whether you need xserver-xgl will depend upon what graphics card you have. I suggest that you try removing that. Have you tried enabling desktop effects without it, in KDE's system settings?
Hi Reuben
I'm afraid you probably won't get much help reporting KDE 4.1 bugs on Launchpad--it's still a beta, and the PPA packages are not part of the main Kubuntu release. You might want to try bugs.kde.org.
Whether you need xserver-xgl will depend upon what graphics card you have. I suggest that you try removing that. Have you tried enabling desktop effects without it, in KDE's system settings?