I'm running Windows XP with 2 GB of RAM with a pretty fast dual core processor and I do a moderate amount of multitasking. I seem to be getting adequate performance, but I'm still not sure if I have enough memory. I try to look at the information in the task manager but it is confusing with terms like physical memory, commit charge, and kernel memory. My page file usage is about 1.2 GB. I would appreciate any suggestions.