Matrox Millenium II AGP - is there a tweak for gamma setting

Archived from groups: comp.sys.ibm.pc.hardware.video (More info?)

Hello to the group. I have a fairly old P-III PC that I am just using
as a file storage device on a two computer home network. I need to
adjust the gamma on the Matrox Millenium II AGP video card because the
video output is quite dark going into the Princeton Graphics Ultra 75e
monitor. I had a software package (Powerstrip) that was
gamma-functional until the trial period ran out. I realize this is an
OLD card and that most of the modern up-to-date cards/video subsystems
have their own on-board or disk based adjustment utilities. But I was
wondering if anyone's run across a utility suite for the old Matrox
where I could adjust the thing, set it and forget it? Anything like
that around???