PS7 Startup Problem

I'm having a problem with my Photohop program not wanting to start up that's been going on the last two days. It'll bring up the window where it says "Initializing/Loading Palettes/etc.," but then the window disappears.

I've tried booting it from the CD, rebooting my computer, opening an image with PS instead of just opening the program, and I even tried system restore. I keep getting the same thing. Can anyone help me out with advice on fixing it?