Mac Pro stuck in Windows 7... can't launch OSX

Hey, friends.

I am royally screwed.

I have been successfully using Boot Camp on my Mac Pro to run Windows 7 to play the odd game here and there. No problems for the last year.

Suddenly, I am stuck loading Windows 7, and the Option key will not summon up the icons to select which system I want to boot. Also, no Boot Camp icon in my Windows 7 system tray. Tried so many fixes all day today. Can't start up from OSX system DVDs. Can't re-install Apple drivers on Windows side, because the Snow Leopard disk tells me the 64 bit bootcamp won't work on my machine, and the Original Mac OSX Leopard disc has several fails during bootcamp installation. The Intel Chipset install fails, the KeyAgent fails and the MAC HAL install fails, but the Boot Camp install finishes. Still no black diamond icon in my taskbar... I can't re-select my OSX partition to boot from.

I am desperate. I feel like I have gotten myself into a loop here and can't get out. All was running well for a year and now this. Please help

- David

Here's a suggestion you can try to see if the hard drive has gone south or it's something else:

Pull the hard drive out of the Pro and see if you can start it up with your Snow Leopard DVD. Let us know.