Hi Everyone, I just installed my new hard drive into my Unibody Macbook Pro Mid 2010 model. I did everything correct and have my Snow Leopard USB drive plugged in. I did the hold option on boot and double clicked on the Snow Leopard drive but now it's been stuck on a no pass screen? (see image) I'm assuming I need to somehow format this hard drive first but how am I supposed to do that if it won't let me in? Any help would be greatly appreciated.