Dynamic Disks are Satan's Work. That being said, the following is lifted from a post in M$.public.win2000.file_system:

This may be caused by a renumbering of the drive partitions resulting in the original boot.ini settings being incorrect.
In the case I had, a small 8 MB partition at the end of the drive had been renumbered to partition 1. This caused the
boot partition to be renumbered to partition #2

If you cannot access the system, you must create a new boot.ini with the new settings and copy this to the boot
partition using recovery console.

1. In recovery console, use TYPE BOOT.INI to view the current Boot.ini file.
2. On another computer, create a text file to match using notepad except increase the partition number by 1 and copy
this to the root of the boot partition.
3. Restart the computer.


End quote.

Just something to poke around (carefully damnit!) with before writing it off. Don't goof up your working disks tho!

-Zeke