Power user - Color Correction not Sticking

I've got my MS XP SP2 pc set up with two accounts, an Admin, and a Power User.

I only use the Admin account to install programs. Trying to set the color correction to the Power User account but it won't stick. How do I make the settings stick for the Power User?

a problem with a client's smartboard (interactive white board) not holding its alignment was as a result of the user having incorrect registry rights

you could see if this helps you:

start run regedit
select each root item in turn and right click
select Permissions
give everybody full control (add everybody)
(lose any benefit of not being logged in as admin)

if you can find the key that pertains to the colour correction then you only need to edit the permissions for that