I went to the Apple store about a week ago for a 1 on 1 because iMovie kept crashing and to get a quick tutorial on how to use it. During my visit, an Apple tech took a look at my crashing issue and narrowed it down to an iPhoto library full of about 20 hours of avi files. Cheap digicam. So I swapped out to a new empty iphoto library and imovie 09 started working again just fine. It's a ritual I will have to repeat until I manage my media a little better. But I remember the guy thought I was running Tiger, just because I had changed my dock back to 2d and because I was running QuickSilver. You would think I had pooped on my machine. "QS runs slow on Leapard" he said. "You really should just use spotlight". Sure. Fine. I do use spotlight, but cmd-space was mapped to QS. Until today. Man what a mess. QS wouldn't launch at all. Repeated attempts to force quit and #kill -9 the thing just wouldn't work. Finally I uninstalled it and things sort of started working until I tried to pull up a terminal. Now the freeze was even worse than it was when I was trying to get rid of QS. Now my Macbook was completely froze. Finally, I fished around and found /library/application support/SIMBL/visor.bundle and moved it to trash. Another reboot and my machine was working just fine again. I can't help but wonder. Did Apple do something in a recent system update that made these fine apps crap their pants? I've had 10.5.6 for a while but a rash of updates came along when ilife and iwork 09 went on sale. I can't understand how such solid apps suddenly careened off a cliff, taking my Macbook with them and about the only thing I've changed is upgrading to the 09 versions of ilife and iwork and accepting the latest round of os x updates. Any thoughts? Is there something more serious going on and my QS and Visor troubles are a symptom or are QS and Visor suddenly being rejected by the OS X immune system?