Many months ago I saw in display properties under the settings tab where it
said "Extend My Windows Desktop onto this Monitor"..I put a check mark in
the box and played around with it,unchecked the box again and clicked
apply,I thought everything was ok...Now I'm unable to change my
resolution...the checkmark is still there and it's grayed out,so am unable
to make any changes...before this I was able to go up to 1280x1024..now I'm
stuck on 800x600..any ideas....would entering Safe Mode and trying that
work??