Mighty Mouse Question

I did not see a specific place to put this so I am posting it here because I ue it on a G5 PowerMac.

My Mighty Mouse is having issue with tracking properly. The cursor does not properly track the movement of the mouse. I have tried it on multiple surfaces and also tried cleaning the lens on the bottom.

I would like to call Apple to see if they will fix it for me but I can't seem to find the correct number. Does anyone know if there is a fix for this or know who I can contact to get it fixed?

Thanks!