my Vista boot drive, a Maxtor 6L200M0, also failed unexpectedly. i installed the RC1 version on a 35Gb primary partition, leaving about 160Gb for my XP partition.
everything ran smoothly for about 2 months until when trying to install a MIDI keyboard it didn't appear to support. upon my attempt at booting Vista the next time at the OS selection screen it gave the error message 'BIOS does not be installed'.
i have tried to boot Vista but each time it searches for a boot drive and does not find one. from what i can see, booting from the partition is disabled as i can still access the data from my XP OS.
is there any way of 'enabling' the booting ability of the partition?

i have a limited knowledge of the advanced workings of hard drives and any help on this issue would be greatly appreciated! thanks