So I think I may have seriously borked this thing. It's a core solo mini that I had set up to dual boot OS X snow leopard and windows 7. Everything worked great until I did a hard shutdown after win 7 froze. Now all I can do is watch it boot up with a blank gray screen, and then eventually switch to a black screen with a blinking underscore cursor. It won't respond to any keyboard combos while booting (can't hold [opt] to select a boot device, can't hold [cmd]+[V] for verbose booting, or just about any other key combo that is documented). So am I more or less completely screwed? Is there anything else I can try before I go to an apple store to be told the cost to repair it is 3x the market rate for a replacement on eBay? Could it be bad ram or a fried CPU?