mouse stuck with kernel 2.6.7

Hi Just for the fun of it, I installed the "testing" kernel-image-2.6.7-1-386 package on my K6-450 PC (sarge, up-to-date). It boots fine but the mouse (wireless logitech) does not move at all. It works fine with package kernel-image-2.4.27-1-k6, which I tried to see if it had anything to do with a

Motherboard with SiS 620 video chipset and HT8338A/PCI sound

d to load this module but it requires IRQ, DMA and IO parameters which are not available in the documentation. Has anyone around been able to get some sound, even noise, out of such a configuration? TIA --------