Hmmm... this may be more that a simple graphics card issue.
For the next step, can you perform a Clean Boot by:-
1) Going to the System Configuration Utility (Start|type in msconfig|enter)
2) On the General Tab, click on the Selective startup entry, untick "Load startup items", hit Apply and OK
Try running your game again. If the problems occur, repeat steps 1 - 2 but before exiting the utility, go to the Services tab, tick "Hide all Microsoft services", click on Disable All, then hit Apply and OK. Reboot.
Try the game(s) again, and report back. Thanks for your patience.