[Skunkworks] What's Taking up Memory??!

I'm using a machine that when booted, uses over 50% of the memory (way beyond the physical memory, majority of it is from the paging file-for nothing!). It then gets painfully slow... With just a browser, usage shoots to over 80%! A laptop on the same network behaves the same. The funny thing is that this memory is not accounted for (on the processes), and using other tools that show processes including hidden ones doesn't show either. There's Bitdeffender running, (laptop has kaspersky) and they are automatically updated. Both are on XP. Anyone familiar with this? Please help. -- Samuel Waithaka Techiepreneur | http://groups.to/techiepreneur http://blog.techiepreneur.com http://www.linkedin.com/in/waithaka http://twitter.com/samwaithaka