Track pad has gone wild

[c-m]

I have installed karmic for a friend on her Fujitsu Siemmens v5535 laptop

Recently after starting the computer the track goes completely insane as if its continually auto scrolling up and down at a rapid rate.

I cannot stop this, even plugging it and external mouse does not stop this behaviour and its rendering the laptop unusable.

Can anyone help?

[BZF]

it probably doesn't like the driver. try doing a hardware/driver update. or just run the regular updates, that may help

[c-m]

I had been working fine, in karmic for the last 4 months.

Only recently it started playing up. There were no software changes on the computer (mainly as she doesn't know how). I installed Mint 8 (based on Karmic) last night and it did the same thing.

It works fine for a while, then the cursor freezes of can only be moved up or down, and the pad keeps scrolling quickly up and down.

Is there anything i can do?

There is no option the laptop to disable the pad (can this be done in Ubuntu instead?), other wise i would do that and use and external mouse.