I just installed Windows 7 on bootcamp on my new iMac's SSD drive. I know to change you are suppose to press OPTION KEY for the choices coming up. I have the wireless Apple keyboard and Wireless Magic Mouse. I don't know if not communicating with bluetooth during boot causes this problem, or not, but I had to load Bootchamp to at least give me an option to go from MacOS to Windows. I does seem to work when I set Windows as the default boot, but when I switch the default boot to MacOS, it doesn't seem to work at all. Anyone have any other solution to get the OPTION key to work all the time with Bootcamp and MACOS launch at startup and restart? UPDATE: I just tried my wife USB Apple Keyboard and USB Mouse which I took from her 24 inch iMac and used on my 27 in with Bootcamp, and the Options Key works perfectly fine. It does looks like a bluetooth issue with the wireless keyboard and wireless mouse. How can it get the wireless keyboard to communicate faster on boot?