Revo64 5 Port SATA RAID 3 and VISTA

[Colbaker]

I get a really strange thing happening in windows Vista with my XFX Revo 64 RAID 3 setup, After a while (not sure of the exact time) it turns all the hard disk drives on the REVO card off making me unable to access it without resarting, This does not happen in windows Media Center edition which is dual booting.

Is this a Power management thing or a thing in Vista?

Anyone know?

Thanks

 

[Colbaker]

I thought it was that but can't seem to find the setting to power down hard drives in Vista, It only gives me 2 choices which are "monitor off" and "system Standby"

Any idea's