I was trying to free up HD space on my 2010 13.3 MBP. It appeared that I had some duplicate system files so I deleted one set of them. Could not get the mac side to work after that, windows was fine. Last night I installed the 10.6 disk and started the recovery from Time Machine. Got up this am and the screen said everything was complete and to do a restart. So I did and now all I have is the apple screen and the clocking circle below that. I did a forced shutdown by holding the power button, waited and powered up. It is still stuck on the apple screen. TIA for your help.