Hello, This morning I went to use my laptop, Screensaver passsword box came up and it wouldn't recognise my password at all, So i rebooted. Now my macbook doesn't get any further then the apple logo with the progress wheel then after a while it reboots. So far i've tried the following: 1.)Reset PRAM 2.)Ran Disk Util from install disk and repaired disk permissions 3.) Booted into Safe mode None of the above have made any difference at all? I thought about "repairing" the install of os x but the version on my disc is older than the version on the laptop so it won't let me? Any ideas?