What would cause this? It was low like 5gb then at one point it was up to ~20gb and now its back down to 3gb. I haven't installed anything between that happening and have only downloaded a few pictures and mp3's (maybe 3cds worth) So I know that isn't taking up almost 15gigs. When it went from 5gb UP to 20gb I only deleted a few videos between that time and I'm not sure of when it actaully went up. I'm not the most computer savvy person but I know a little bit and I just can't figure out why this is happening. Does anyone have any ideas?