Laptop touchpad pointing wrong.

I've got an Acer 5420 with a very annoying habit of not actually pointing at the spot the pointer is. If i click where I have the pointer it actually clicks half an inch above it. I've tried to install and uninstall the Synapsis driver, but i does not seem to make any difference other than me beeing able to scroll or not. I've also tried to have 4 fingers on the touchpad simultaniously without any results. Not even using an external mouse helps.

Anybody encounter this problem before? Got any suggestions?

Very thankful for any help!

Peace

Thank you guys I'll scan the system right now. As for buying a mouse I alerady have tried that, and it's still the same :/

Now to scanning. Cheerios!