There is some type of problem with my System. Macbook Pro Core2Duo 2.4 ghz 4MB L2 Cache 4 gigs ram 160 gig Segate 7200 RPM Hdd OSX 10.5.6 My computer has been running incredibly slow lately. I think it has to do with the disk usage as every time it has to access the disk, it slows to a crawl. I've had a huge amount of beach balling, especially when loading a new App or a new page in Safari. Here is a picture of the disk usage. Does this look normal? Does anyone know what the problem could be?