I've been running 10.6.4 on my 1201n without any problems for over a year and suddenly the trackpad and keyboard started acting up. The mouse would only work sporadically, sometimes it would come back after opening the Trackpad preference pane. I cannot get the trackpad to work at all.
The keyboard only works after putting the computer to sleep.
I have tried running the Kext utility and I have reinstalled OSX 10.6.4 and I still have the same problem. I don't know if it's a hardware problem with the trackpad being worn out or if there is something I can do to fix it, but I need some help!
I followed the install guide up to 10.6.4 since I have had problems with stability on 10.6.8 after upgrading. I am using the 4 GB DSDT.