Tried the patch on the PPro machine today. The problem seems to be gone.
We did sort of a heavy duty test on the machine, like simultaneously
copying files from a CDROM, recording a CDR and scanning pictures with
XVscan.
I'll try the patch on the second P166 tonight and if it behaves well I'd
really like to see this patch to be included into the official driver
for future versions of the kernel.
Well done, indeed.
-- Matthias