Today I've been having a weird problem with my PowerMac G5. Every time I click on a different app, the app doesn't become active until about 5 seconds after I click it. For example if I'm using Safari and someone IMs me using Adium, I click on the Adium window and start typing and the text doesn't come up for 5-10 seconds after I start typing. The same happens for Terminal.app, Mail, Safari, etc... I've tried the following: Repaired permissions Ran a disk check Removed all my extensions (mainly Growl stuff) Rebooted about 10 times Installed the latest patches (i.e. the Security update that happened today). Ran as a different user (same results) Anyone ever encountered any issue like this before? My Mac is decidedly un-snappy, and its very frustrating. CPU usage is low BTW, there are no rogue processes taking up the CPU time, and disk usage and memory are all normal.