Hi BDAqua, thank you for your response and suggestions.
I never received an Install Disk when bought the laptop.
Tried the Safe Mode before, but nothing changed. Still the arrow moves around with the Trackpad and/or mouse, but still nothing reacts to the clicks ...
Tried the Single User Mode as you suggested, it came out: the HD Volume seems to be working properly.
Couldn't try his one as the link doesn't work ...
Resolve startup issues and perform disk maintenance with Disk Utility and fsck...
http://docs.info.apple.com/article.html?artnum=106214
Still hoping to resolve this issue ...
Thanx for your input and help.