see if this KB article applies to you and may help.
http://support.microsoft.com/kb/925528/en-us
mikeyhsd@sport.rr.com
"Jim" <Jim@discussions.microsoft.com> wrote in message news:F5FC49AA-C0E2-4B4E-AAB2-FEECB95FE19F@microsoft.com...
I have a gigabyte GA-M51GM-S2G motherboard and an ultimate vista version!When
i try to start vista and my wd mybook essential 250 gb disk or my transcend
card reader are connected, vista can't go on welcome screen!When i unplug the
usb devices, they start.And then i plug my usb devices again and they
recognise the devices.Vista don,t recognise my wd quick.About a minute or two
later. Any advices?