I have an early 09 white MacBook, intel dual 2 GHz. After running TTPro volume check from the TTP derive I got an error so I tried to verify using disk utility (from the same volume). Disk Utility also indicated an error, so I tried to repair it with Disk Utility, which finally said it couldn't repair and to restart and back up files before reinstalling. Unfortunately, When I try to restart I get a grey screen which says among other things debugger called: <panic>. There is a black message box which says: You need to restart your computer. Hold down the power key until it turns off, then press again. After doing this the same thing happens. I need to get the data off. Files seemed ok until this happened, so hopefully They are still there. Any ideas or suggestions greatly appreciated. I had transferred large number of files from a Mac knocked out by the recent storm in order to move them just before this happened.