Endless spinning wheel on shut down
If I boot up and do not initiate any software and then shut down, shut down occurs normally. If I initiate any software, I get a blue screen and the endless spinning wheel. I tried the repair disk and repair permissions from the startup disk, to no avail. This is something that began just recently, possibly with upgrading to 10.6.7 but I'm not sure. Safe boot makes no difference either. I am running on a 2.8 GHz, i7, quad core.
Thanks,
Jacob