I have an HP Pavillion notebook ZV-5420. It has a 3 ghz pent. 4 Processor, ATI 9000 video with 128 megs of shared ram with 256 built in ram and one slot available that I have a 512 ram chip in it. When I try to play my best frame rate is 15 - 20. I have tried different video configurations but not helping. I wanted to know if I swap out the 512 megs of ram for a 1012 chip if that will help?