When I try to load back into OS X from windows the computer chimes, the grey screen appears, then the apple logo, then the rotating circle underneath the aplpe logo. It sits at the rotating circle stage for a few minutes then restarts again. If I leave it it will just keep sitting at the circle and rebooting. The steps I have taken to try and fix this are: 1. Clear PRAM by holding CMD+OPT+P+R 2. Resetting the SMC by removing all peripherals, battery and AC adapter then holding the power button for five seconds. 3. Booting into safe mode to delete bootcache.kext - I can't boot into safe mode, when I hold shift after I hear the chime nothing happens differently, it just takes longer for the rotating circle to appear. I recently installed MacDrive in Windows and deleted files in my OS X partition, these files were not system files, just a game I had downloaded. Also, I can't boot from the OS X CD because I'm at school and like a dummy I forgot to bring it. Any ideas?