Hi, I have an iMac running on snow leopard. I recently upgraded the RAM to 4GB because it was running crazy slow. Now that I have upgraded it, it has made no difference. On activity monitor, my free memory is virtually nothing only 8MB, and my swap used is 42GB!!!!!! and my page outs is 23GB!!!!! what the hell? Why is it so high?... I do have quite a few programs that run, but there are only like 3. Two email client softwares and spotify. Help?