MacBook keyboard and touchpad stopped working!

Hello everyone,

i have a Macbook late 2007 with OS version 10.5.8. My keyboard and touchpad suddenly stopped working properly.

I reset the PRAM and the SMC. Then it worked, but after few minutes it stopped again. Now, when i start my mac, it also works for 5 or 10 minutes and then it stops.

Mouse Keys in universal access are disabled.

After reading some tips, I tried the Terminal and command kextstat -kl | awk ' !/apple/ { print $6 } ' - it shows me two drivers but I am not able to kill them.

Thank you for reading and for your advice,

Coldrex