I have v11, 13,15 and 16 on my Win7 PC and they seem to operate normally. I often hear people here say to not get a computer with integated video but that's just because those are slow.
There are probably more current drivers for that video card none-the-less. That would be my first guess, find the appropriate latest drivers and install those. (And of course you have a way to revert your computer back to its original state just in case you mess something up when you do this.)
Win 7 i supposed to look for updates automatically, but look anyway.