OK I had win 7 setup as secondary OS with Bootcamp. Today I decided to turn on FileVault and encrypted the Mac, but it seems it has done more than that since when I boot now I don't have the choice to boot Windows anymore. Once booted I can see the windows partition and the files there. So I guess it encrypted them as well and the booter can't see them before the mac has dencrypted the file system. But since when encrypted it asks for password twice, once very early in the boot process to decrypt and then the normal password at the log-in screen. So if that's the case isn't there way to boot into windows after the fist authentication or other way around to use encryption and bootcamp BOTH?