hi i patched the current nvidia driver with some patches from nvidia forum all people with problems please test them if it solves your problems: known issues are people with 440mx chipsets and tnt2 also cedega users should test them
and surely all others too that these patched driver will not break your setup
here a forum link for discussion http://bbs.archlinux.org/viewtopic.php?p=53948#53948
or contact me directly