Window xp starts up with wrong resolution?

Question

I changed the resolution on a screen that is not supported by monitor and so now i cannot see my desktop when the computer boots into my profile (i can see the boot up screen though). So the question is how do i change the resolution of my display when i cannot even see?
For the advanced users, i used Power Strip and probably made some wrong configurations on the frequencies.

Answer 1

Hit F8 and boot into safe mode, make resolution change and apply.