Possibly you might get some help, if you were to provide some real info:
Model of laptop, and full hardware specs.
What version of Vista.
Detailed problem descriptions -
what are you trying to do?
what are you expecting to happen?
what is really happening?
If the problem is with, say, specific video filetypes, what are they? What do you have installed, codec-wise?
Many of us are here to help. However, much like Johnny 5, we need input. 