I'm afraid I cannot personally help you with this. I know that in the past newly released nVidia drivers also lead to unexpected results at times. It also appears that the driverversions which you mentioned to cause this unexpected behaviour are all beta, whereas the version without this problem (275.33) is a WHQL-version. (There also seems to be a stable WHQL-version 280.26 which you didn't mention having tried it.).
Maybe this is more of an issue for NVIDIA-forums?
(Note I'm just a fellow-BS.Player-user, not a developper or programmer.)
Maybe other BS.Player-users which also use nvidia-based-GPU's can comment?