I saw it last night. I'll look over it.  Dave.
I have a Dell Precision 670 workstation. It came with Windows xp x64. I later upgraded to Windows Vista Ultimate x64. The only problem I had at the time is the SCSI Host Controller is not recognized by Vista. I used the XP x64 drivers for the scsi controller and that worked fine. I would like to upgrade my Vista x64 to Windows 7 x64. Has anyone done so? Did it work? The Windows 7 Upgrade Advisor flags the scsi HD controller as an unknown (Just as the Vista Upgrade Advisor did). The HD Controller is a Adaptec Embedded SCSI HostRaid Controller (Ultra320). I have not been able to determine the model # of the controller. A Micorsoft rep I discussed this with said as a general rule, if your hardware works with Vista service pack 1 you are usually good to go. On Dell's website it lists the 690 as working with Windows 7. This is a similar workstation but I can't say for sure how similar.  
Does Windows 7 work with the Dell Precision 670 computer?