Does RAM aid the video/graphics card? Because one of my friends told me that having more RAM aids the video card. As you can't replace or upgrade the video cards in the MBPs, I was wondering if more RAM would be an alternative. I don't desperatley need it, and my MBP is not preforming poorly in the graphics area, but I would like to know because it would be a future possibility if I start doing more intensive stuff and my MBP isn't preforming to its full potential. *I have the 13" late 2009 MBP with 2.26 Ghz processor and 4GB of RAM.