Thank you very much, Noel!

Indeed, I can get 1024x768 resolution (even 1280x1024, if I want) and True
Color 32-bit now. Thanks a million! You are a computer wizard!
(How do you guys know so much? I searched the Internet for 2 days, and I was
still lost...)

Anyhow, I hope I can get my old computer back working again. It was so
unstable before I re-formatted the hard-drive, hopefully now it will behave.

Best wishes to both of you!