Hello, I have an external DVD player but can't boot from a windows DVD with it. I can boot from the OS X DVD with it though. When I boot with alt pressed, it recognises the DVD, I can choose it and press enter. Then, after around 5 seconds, the login screen is displayed with my user selected and asking for password. But I can't type anything and I can't move the cursor. Everything is frozen. The light of the caps lock key doesn't even turn on when I press it. I have a fusion drive and filevault2 on OS X 10.8.3. I tried booting from 3 different windows DVD (2 windows 8 and 1 windows 7, all 64bit). This is on a MacBook 15" mid 2010 where I swapped the optical bay out to make space for a second hard drive. Anybody else seing this issue? I thought booting from external DVD drive should work? Next I'll be trying to burn the ISO on a USB stick to see if it helps.