>>Bruce, there should be an option to boot into VGA mode; doing that runs the default 640x480 VGA driver. You then fix and reboot as needed.
>
>Okay, we've repaired the damage. The time for the VGA-selection screen was set to 0, for security reasons. We made a bootup disk that set it back up to 15 seconds, so we can go in and fix it. Machine is now back.
>

Bruce,

PMFJI but for future reference, the time out should be stored in boot.ini in the boot drive home dir. c:\boot.ini here. If you can boot the machine and get access to it you can change it in a text editor. Mine looks like:

[boot loader]
timeout=5
default=scsi(0)disk(0)rdisk(0)partition(1)\WINNT
[operating systems]
scsi(0)disk(0)rdisk(0)partition(1)\WINNT="Windows NT Workstation Version 4.00" 
scsi(0)disk(0)rdisk(0)partition(1)\WINNT="Windows NT Workstation Version 4.00 [VGA mode]" /basevideo /sos

If you can't boot to it you can always physically move the drive to another working machine as a second drive, boot the working machine and access the drive that way. (Had to do it a couple times myself after a couple stupid Roi tricks *s*)

hth