I'm not very happy with this product so far. I have an XP SP2 CD, and a matching ISO file too. If I boot using the CD, the DOS section of setup gets as far as "Setup is starting Windows" and then hangs there. If I then use the ISO file instead, Parallels never progress past the black BIOS screen, just hangs there. If I then switch back to using the real CD then it also hangs at the BIOS forever, even if I close and reopen, enable/disable hardware/acceleration. The whole virtual machine is broken and I have to create another one to have any chance of booting any CD at all (including a Win98 CD). Macbook Pro 1.83 GHz, OS X 10.4.7