I have a P4, 2.8 processor, 80 gb hard drive, 512 RAM. I have 30 gb free space. Lately it freezes up in the middle of an application...it could be converting a video for DVD or simply playing a video game like Diamond Mine. It happens at least once a day. I've tried to convert the same video half a dozen times and it freezes at 85% completed. I'm wondering if I need to install more RAM or increase the size of my virtual memory. Advice would be greatly appreciated.