So I just finished downloading the Knoppix Live-DVD, and burned the image to a DVD. No problem there.
But whenever I launch Knoppix it auto-detects my refresh rate to 86hz in 1280x1024 and 101hz in 1024x768, just 1hz above what my monitor support and it then defaults to 60hz.

How do I change it to 85hz?
I've tried the configure display (some KDE config I guess - found it just left of the clock). It allows me to change resolution, but it only has one refresh rate available.

My gfx is an Inno3D Geforce 7900GT and my monitor is a Viewsonic G90f+ 19" CRT (supports 1024x768@100hz and 1280x960/1280x1024@85hz).

Thanks in advance.