1. Mac OS Version OS C 10.6.1 2. Parallels Build # 4.0.3848 3. What kind of computer MacPro1,1 4. Total Physical RAM 4GB 5. Hard Drives 4 300GB SATA Drives (Mac Formatted), 1 120GB PATA Drive, Windows 7 NTFS Boot Camp 6. If you are using a BootCamp configuration or not Yes 7. Did you upgrade from a BETA No 8. With what Build did the problem start This one 9. If Parallels Tools are installed Yes, booted into Boot Camp shows installed, Parallels says not 10. Anything you have tried to get things working Anything and everything 11. Anything specific about your set-up you think we should know Nope, all standard stuff, nothing fancy (Windows 7 is in x64 mode, which is possibly not fully supported on this older Mac Pro, I'll reinstall in x86 mode and try one last time). 12. If you are crashing, upload some crash logs No crash, I always get the dreaded "Missing operating system: message, which is obviously wrong 13. If you are getting an error message type it in and then attach a screenshot. No crash, I always get the dreaded "Missing operating system: message, which is obviously wrong 14. If you are having issues with a specific component (i.e. mouse, keyboard, monitor) tell us what it is.
How are your partitions setup? Use "diskutil list" and "sudo fdisk /dev/disk#" in Terminal.app. Also include the information about the disk from System Profiler (you can copy and paste from there) which will give the model numbers of the hard disk which Parallels shows in the Hard Disk configuration. Maybe the active partition is not set correctly? See http://forum.parallels.com/showthread.php?t=95585
