Whenever I work on a computer, and EVERYONE has the slowing down problem. It sounds like you have a program bogging it down. 1. Run msconfig, and go to startup, and uncheck anything that you don't need. 2. Right click My Computer, and go to properties. Go to the advanced tab, and it will be the second button in the middle (visual effects, if I remember right). There will be a few options checked there. Uncheck the ones that animate, fade, and slide, then click apply and okay. 3. Max your virtual memory / paging file. With some computers, that helps out a HUGE amount. For a 32 bit processor, the max is 4095 mb. I don't know what it is for a 64 bit OS (since you have 4 gigs of ram) but I would try to go the highest you could. Hope you get this over the 600+ relpies, and I hope it helps! =)