I was using ubuntu on my main latop but I broke it and decide to go with slackware (just like my others boxes

) and now I'm having a hard time with the scroll line in the touchpad.
I did a research and I added a line on xorg.conf
Options "ZAxisMapping" "4 5"
it was working using the default kernel 2.4.31 but after I booted on 2.6.17.7 it did not work anymore (I used a diferent .config file)
the Protocol is set to 'Auto' -- does not work with 'ImPS/2' either
so my guess is that I'm missing something on the kernel... any ideas?