Hey all - this is not necessarily a problem but more of a befuddling thing that happens. First off, I run Vista Business 32bit on a slightly (hehe) outdated comp (Athlon XP Socket 754, 1GB SDRAM, NVIDIA GeForce 6200, MSI K-8MMV mobo). I've been running it since this summer without any showstoppers. For some reason, the hibernate doesn't work, but this is a separate issue. Anyway, I normally boot it up and my memory/CPU meter shows me that about 50% of my memory is being used. It stays about level as I do my thing, which involves Outlook, Winamp, Firefox and MS Office 2007. I can play games or do anything and the thing seems to stay around 50% when I am done. Now, when I leave the computer running (b/c of my stupid hibernation/standby issue), say, overnight with Outlook and Winamp open, when I get on it in the morning, it drags a little. I notice that the memory meter is up to about 75%. It stays there when I do my thing again. Then, I leave it and go to work and class, and when I get back, the stupid thing is up to about 85-90% used memory. I can tell that there is an obvious lag - sometimes it takes 5+ seconds just to bring up a minimized program like Firefox. I can't for the life of me figure out why it eats up that memory. There has to be some process that gobbles it up and doesn't give it back that I can't figure out. I leave my XP machine on all week at work with no noticeable difference. So far the only cure I have found is to restart Vista and get it back to 50%. Like I said, this is not a huge problem per se, but definitely an annoyance that would be great to have some light shed on the matter. Any thoughts?