My computer currently is pretty choppy when it comes to playing 720p files (encoded with x264). I was going to upgrade my PC's RAM, and I'm wondering if anyone can tell me if it should be able to play such high definition files after the upgrade. My processor is 2.66GHz, and I'm currently only at 512MB RAM. I just have a standard 128MB video card. I was going to upgrade to 1.28GB RAM (switch one of the 256MB RAM for a 1GB one). The one I am thinking of getting is a "1GB DDR2 240-Pin Memory". Do you think that would work any better, or does anyone have another suggestion that could speed my PC up a bit? Thanks.