iamconstantone :
I'll try that thanks. But the thing is games aren't running at all now. They crash right at the start. Pretty much anything that I try to run with nvidia card is glitchy and black. Does this mean what I fear it means?
My first guess is that the GPU is dying. I don't know how comfortable you are with disassembling your laptop, at least to the point that you can used compressed air to blow the dust out of your heatsinks, but that would be my recommendation. If that doesn't help, then I am afraid that the GPU is gone. Since they are usually not replaceable on a laptop, you would then be in the market for a new laptop. Sorry.
Is it still under warranty? If so, maybe you could get Acer to fix it.