Built in Webcam problems please help.

Well got my new laptop. Has a webcam which worked for the first day and i started installing games and crap on my pc and now it wont work... I get the message Preview not available when i open up the software. I even tried bison cam and it doesnt work. So idk lol. If anyone could help i would greatly appreciate it. Btw the software that came with it is AveoCap version 1.0. Dont know if that helps any.
Thanks,
Clayton

wow that was a pretty simple fix... I updated my graphics drivers off the company website and it works. wow....