yea, our computer guy at school did that once. he teaches a class, and he was out for 2 days once, and he took control of my computer during my class and asked me (through Notepad) to help the sub.
I did find a program called NTRconnect, but both computers have to have the program, and the dominant mouse is the mouse of the computer being controlled (I'll call it the CBC), so if someone bumps into the CBC's mouse, I lose control until my pointer goes over the one on the screen (the other computer's pointer), and it's really laggy when you are doing anything other than using notepad, and nothing much else
Specifically, I'm looking for a program that only requires the program on
one computer,
my computers mouse is the dominant one, and isn't so laggy. (I mean the kind of laggy where when something moves, like in a video game, the new view slowly loads form top to the bottom.