early 2008 macbook pro won't boot, please help?

[parkie]

I bought the MBP on sunday and this is what I've done:
Installed all the OSX updates, installed my RME firwire audio interface, installed Logic 8 and a few plugins, used it for a while, everythings great. I then turn it off and when I come back to it it won't boot. It gets stuck at the apple logo then it reboots and gets stuck at the apple logo again. So I re-installed leopard, all the updates, firewire device, logic 8 +plugins, do some more recording. Turn it off. come back later and it's done it again, it won't boot past the apple logo with the grey screen.

anyone have any ideas?

p

 

[Sheeds]

I had this same problem, after trying everything I used my install disks to perform an archive and install, it hasn't had booting problems since.

Boot from install disks, continue when prompted to install and choose to Archive and Install. It takes awhile, but it's worth it.