Running XP Prof. on a dual Pentium cpu. There is 1.5 GB of ram on board. I have noticed while monitoring performance that when using 3D animation software (Maya) that it only seems to use 400 - 500 mb of the ram. I would think that with so much ram, visits to the paging file would be rare. Is there some tweak or preference that might control the amount of memory a program uses or is it simply an issue of programming?