I have this Vivanco optical PS/2 wheelmouse. The mouse cursor just sits there at the center of the KDE screen. I've tried "knoppix nowheelmouse", "knoppix wheelmouse" and "knoppix pci=irqmask=0x0e92" with no luck. What should I try next?

The mouse works under Windows (98, XP) without any additional drivers, and I think it works under DOS, too, but I'm not sure.

In case someone is cataloging hardware incompatibilities, the model is Vivanco Primary Optical Mouse EDV-NR.13007/MSOP10.