mouse/trackpad keeps increasing & decreasing font sizes

I have an Acer notebook/tablet and everytime I go to use the trackpad all of a sudden the font size increases and decreases. I have looked into the mouse settings and there is no box that says increase/decrease font size. This is driving me mental! It happens with every move I make with the trackpad. Is there a program or some regedit fix I can tweak? HELP!!

Are you somehow accidently holding down the CTRL key (or any key) and moving the trackpad ?


also look for touch click or things like that in the trackpad settings..

or you maybe have a deeper problem..