also. try download.com and download something called freeramxp or something liek that
it docks itself in your taskbar, and it lets you know how much ram you have free at all times...you set a point, where if you have less than X amount of ram, it will automatically free up some space...usually by the 100's of MB for me....so gi ve that a shot...you can also manually free up some ram if its just1 mb or something, shy of the auto-free....that really helped me out alot
but my comp has been freezing the last 3 days or so...but then it unfreezes about 10 mins. later...but it is annoying..