Hi! I bought Parallels Desktop 3.0 yesterday and I installed it but it doesn't work. I have a MacBook. when I tried to start Windows Vista the following message appears: Parallels(R) 3.0 build 5608 (C) 2005-2008 Parallels Software International Inc. All Rights Reserved 640 KB Base Memory 524288 KB Extended Memory Boot from CD/DVD-ROM drive... failed. Boot from hard drive... failed. Boot from floppy drive... Non-System disk or disk error Replace and press any key when ready What that means? I downloaded Parallels from the net so I don't have CD..... What if I would burn my Parallels.dmg to the CD? Does it make any difference?