Studio 15, touchpad problem

Hi all. I have got studio 1535. After a couple of days I noticed that my mouse cursor is moving very erratic. E.G. If you touch touchpad and move cursor in circle it's like jaming / stopping every 5 seconds for 0.5 sec.

I have done diagnostic, I reinstalled vista,Ubuntu, XP still this same.



I compared with other studio15 and the problem is the same.

Any ideas??



Thanks in advanced

Excuse for my poor english, i write from spain.

Movies 24h | Dmart.vn