First step would be to try different browsers. See if you can isolate the problem to that. Then, if the problem still exists, you can try updating your drivers. There is no decent program that (that I know of) that will automatically update drivers, but if you open the run utility, enter dxdiag, and go to the display tab, there should be the exact model of gpu that you have. Google should take care of you from there. Most drivers come in pretty simple .exe installs, just make sure you get the correct bitrate for your system (also readily accessible in the dxdiag utility, under the system tab).