Hello EMlyDinEsH,
I tried with your recommendation in the first post of this topic. I deleted all Kexts like ApplePS2Controller , VoodooPS2Controller, AppleACPIPS2Nub, ApplePS2 Keyboard and other ElanTouch kexts and reinstall Your kexts with Kext Utility. But nothing happens. I will reinstall the OSX 1.8.2 completely and will try with your instruction again. If it does not help, I will send you the Log-File.