I'm running iTunes 7.6 on a MBP 2.4GHz with 10.5.2 installed. Last night, after having a problem with Compressor not launching(ie it would launch but no window would display), I was forced to take Apple's Compressor Troubleshooting basics and trash Compressor, Qmaster, and Motion. I reinstalled those applications without a hitch and everything is working. Or so it seems until this morning when I tried to play a song in iTunes. It would hang up briefly, then quit. The subsequent error message was that "...The Problem may have been caused by the FX plug-in." I trashed CoverSutra, thinking that may have been the problem, despite the fact I never used it. I even uninstalled iWOW2 with no results. Trashing the iTunes .plist did yield some positive results as songs would play, but if I tried to quit iTunes, it will automatically relaunch. After perusing the Apple support discussion, it seems this is a common problem, although many of the reports were from last month. I just find it odd that all of a sudden I'm now encountering these problems. I do have Synergy installed, but I've never had any problems with it before in the past and even with it not running, iTunes still behaves poorly. Any insight would be greatly appreciated.