I recently bought a new hard drive so that I'd have back-up space on the old one. Also OS X (tiger) was getting slower by the day. I did an archive and install on the new drive and lo-and-behold, GUI responsiveness and opening apps was unbelievably faster!!! The next day, I installed all of the updates (java, ipod, security, etc.) and then repaired permissions. Guess what...I'm back at square one. Slow system responsiveness, loooong app opening times, flaky display (flat panel LCD). This sucks!!! I am considering re-installing tiger and not doing the software updates just to keep my system responsive. I do wonder though how necessary these security updates (and the likes) are. I do a lot of web page and graphic design work....I don't need to wait 10-20 seconds for dreamweaver, photoshop, fontbook, etc to open. Anyone have the same problem? Is there a workaround?