error on launching VISTA

Hi,

I'm getting this error after Vista boots up as a dialog box (title
[error])

"Hard Disk not found
System Administrator rights needed to control the hard disks "

I'm puzzled. I still seem to have total control of the only hard drive in
the PC .

It is on a small network with two other PCs ..... reference to them maybe ?

(I think it might be a dual boot related issue - must resolve that issue and
use some method of isolation of XP from Vista - working on it )

Regards

Denis

Intel DualCore 6600
WinXP Pro , Vista 64 9 Dual Boot
MSI P965Neo
Seagate 400Gig HD
Gainward Bliss 7600GS PCX 256Meg video card