Ice, when the monitor is "out of range" when you first made that change, all you had to do
was not touch anything for 15 seconds, and the setting would have reverted back to the
previous setting.
When you told the computer the setting was okay, when it was not, you will have to
uninstall the Monitor from the Device Manager and restart the computer.
nVidia cards have excellent multi-display options in the drivers.
You can even have the choice of having the task bar across the bottom of both monitors,
but it a really long task bar.
Uninstall the monitor from the Device Manager,
Restart.
Install the nVidia drivers that are on the disc that came with the card,
or go the driver download page here:
Last night I stayed up late playing poker with Tarot cards. I got a full house and four people died.
Steven Wright