Perris be VERY careful, that change of drive letter could easily bork your vista and I really wouldnt do it.
Firstly does windows see it in computer management? Disk manager should be able to show you what windows see's on the disk. Do you use bitlocker at all?
What dual boot loader do you use?
the bios is the boot loader, it's a single partitioned hardrive
I only looked at disc management in vista, I am going to launch the app in 7 next time I boot and see if it sees the space at all
if it sees it as a healthy formatted drive with no letter I'm going to give it a new letter, if it doesn't see it as a drive at all I am certainly not going to format
so overall I agree with that concern but I'm in the mood for a gamble
I have an image of the os so if I have to reformat no big deal, it's also not a critical box, it's gonna be fun to see what happens
here's the theory I'm gonna go on;
if I rename it in 7 that will be for 7's referance not for vista's referance, for instance in vista I named 7's partition "d" but when I boot to 7 it sees this d drive as it's own "c" for it's self referance
my dog thinks he's a person and d thinks it's c
I suppose windows does this because it would have taken too much code for the installers to look at the drive letter before installs
even if windows could do it, and I suppose it could easily, it would have to manage all installers from writers who couldn't figure it out and some programs and drivers might break because they weren't written with complete code taking into consideration drive letters
so I suppose this is a necessary evil and windows stayed with operationg system assigning itself "c" when it runs regardless of the actual drive letter
so I'm gonna swing for it, in 7 I am gonna rename vista "x" and then see if I can boot to it, if not I'll rename it and try again
I'm thinking the biggest problem will be that I break the startup sequence of vista, well see
thanx everyone, if I decide to do it will report back