I'm having similar issues. I found this with google which I believe is relevant. Basically the rt patches which are included in the Xen kernel keep Nvidia from working.
http://www.mail-archive.com/ubuntu-devel- [EMAIL PROTECTED]/msg00058.html -- Can't Compile Driver with Xen 2.6.22-11-xen kernel https://bugs.launchpad.net/bugs/139864 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs