Mousepad issues with Windows 7 Toshiba laptop

If I could get some help with this, that'd be great.

Okay, I've recently had some virus trouble on my laptop, but it's mostly resolved without any major issues. Apart from some svchost CPU issues, I've been doing mostly okay, but now I'm having some issues with my mousepad responding to windows.

I've only run into it in a few places. Sometimes, when I scroll to close a window, the buttons don't light up like the computer can detect them, and when I click nothing happens. If I minimize the window and maximize it again, I have about ten seconds of responsiveness again before I get the same problem.

I also have some minor issues with the same sort of responsiveness in VLC player and Flash-based programs like Youtube, where it seems as though the mouse is invisible. Once again, minimizing the window and maximizing it again seem to resolve it, but only for a few seconds.

Any ideas?

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