Quote Originally Posted by TyphoonMentat
AFAIK, you can change resolution in X by pressing Ctrl+Alt and + or - depending on whether you want the resolution to be lower or higher. It might be Ctrl+Shift, unfortunately I can't remember as I'm in Win XP
It's Ctrl+Alt and + or -
But at least in Mozilla Ctrl+Shift and + or - changes the font size so that might also be useful when you are surfing and hit a web page you are having trouble reading.