Have you installed libglu1-mesa from a non-Ubuntu source? Simply removing all non-Ubuntu sources won't downgrade all package to the Ubuntu version. You have to do it manually.
-- libglu1-mesa-dev: Depends: libglu1-mesa (= 6.5.1~20060817-0ubuntu3) but 6.5.1+cvs20060824 is to be installed https://launchpad.net/bugs/66891 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
