George,
Yes, I'm afraid I initiated quite a long discussion about this. The bottom line I think was that most folks did not have any real problems. I have some with going above 640 x 480 rsolution while in XP. I can go higher if I boot to DOS, but that's a story hopefully you won't need to go into.
If you do run into problems, I have saved every email from the discussion. The answer will likely be there.
Bill Rossi
http://members.aol.com/billatny/
http://www.arts4u.org/rossi/