Hi: I am trying to install Windows XP on Parallels desktop 6 with 2 CPU's enabled. I have the latest MacBook pro i7 quad core, 4 GB RAM. The install kick off fine and then dies giving the IRQL_LESS than error message. I tried installing with 1 CPU enabled (default options from Parallels) and everything works fine and Windows XP boots up, no issues. I even tried changing the CPU's to 2 after the single CPU install was done, and again the same IRQL error message as as soon as it boots up. Any help would be highly appreciated! Thanks