Display settings in WinXp

ok guys, some1 out there has to have an idea how i can solve this problem.

ive created multiple accounts in winxp and have installed the nvidia drivers as admin for my geforce2. As admin, i can access the gamma and brightness settings. I adjusted these so that the screen wouldn't be so dark (my monitor is already at max contrast and brightness) and i checked the box that says "Apply these settings at startup." Then i click "Apply","ok" .... etc.

The settings take effect for all users, but ONLY IF the admin account is logged in first. So, if a user reboots, then the screen is dark and the brightness setttings are not accessible to a user who don't have administrative priviledges on the sys.

does ne1 know how to make the display settings apply to all accounts? or is there a setting in local compurter policy that gives the users access to brightness? can somebody help me???

any guesses? any ideas???????