Macbook Pro wont boot - Stuck in a loop

[Jameschillman]

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?

 

[brainwave89]

Try booting to the install disk > Disk Utility > Repair Disk