Hi all I'm needing some serious help here! I'll explain the situation best I can. I have an older MBP (2.2 Ghz Core 2 duo) running Lion up to date. I needed a bigger HD, so I backed my small HD on an external disk (using time machine), put a new seagate drive in the SATA bay, and using my copy of lion on a flash drive, restored via time machine. Now when I start up mail and activity monitor launch at login like normal, but then I get the pinwheel indefinitely. Now, if I force quit both applications at login the computer won't freeze...until I try to launch a program. Then a couple of different things happen. The first program I try to launch (say Safari) will bounce for a while and then come up as open (ie. little blue light beneath it on the dock, and safari on the top tool bar, but no window), then any other program I try to open will bounce for a while in the dock, and never open, just quit bouncing. So in the end I can't use anything. A little side note here. I tried multiple restores AND multiple backups to time machine. The times before this I couldn't even get to the login, the infinite pinwheel would come up during the Grey Apple screen. I watched the installer log during the restore, and I got like 1500 message that said something about some file was not installed because the extension did not exist. It was the exact same line every time however. One more thing. When I start up my MBP. I get the grey Apple screen with the hurricane, after a few seconds it flashes, and another grey apple screen comes up (with the hurricane a second later), and then flashes and dims. After that I get my desktop. Any ideas?? Thanks for any ideas!