Hi. I recently updated my ibook 1.33ghz 1.25gb ram from 10.5.0 to 10.5.8. I noticed a massive slow down after updating. Especially on youtube videos. They are now unwatchable. Before on 10.5.0 when I bench tested it, it was the same as tiger. now the bench tests on 10.5.8 are a lot lower than 10.5.0. I wonder what the reason for this is? Has anyone else found this problem?