[...]
jjg wrote:
> Just from memory... I think it was the usbhid.ko driver for the USB mouse
> (but that did not work under 12.0 either).

Under 12.0 I get:

modprobe usbhid
FATAL: Error inserting usbhid
(/lib/modules/2.6.21.5-smp/kernel/drivers/usb/input/usbhid.ko): Invalid
module format

and under 12.1 I remember having seen the same...