I have a perfectly usable system: Windows XP running on Parallels 4.something Unfortunately one of the pieces of software I need to use now requires SP3 to be installed. I have had to remove SP3 in the past as it kept causing windows to crash - So - it seems I must upgrade to Parallels 5 and Windows 7 in order to use the Windows software I need. Why can't SP3 just work properly with Parallels 4 (or vice versa) ?!
