Yup just add RAM. It not the RAM you have, just the RAM you don't have. Its a very common problem for many people. I diagnose most of the friends and family's computer correctly as a lack of RAM. fixes it every time. now a days for XP 512MB is a minimum, 1GB recommended. Its simple, just find out what type (most likely DDR or DDR2) and the speed (MHz) and then you just find the amount of memory per stick you want with that type and speed. easy.