I have an old pc, 1300 mhz p4 with 256mb rambus ram. I recently got 512mb more ram (total of 768) and noticed a very mild increase in performance. I've done the paging-file, and performance options in control panel > p & m > system > advanced. Is there anything else I can do to maybe put more work on the ram and free up the cpu aside from overclocking? I'm currently running xp with photoshop, dreamweaver, flash, and vegas video open... I still have 550 megs of ram free. I'd like to put it to use... any ideas? I can still send the ram back for a refund... is that the best solution?