Definition: Given an Amazon customer review, write a title for the review. The preferred titles are under fifteen words.
Input: just recieved the revolution pro this afternoon, i was very impressed until i tried to use the mouse wheel. I am not able to scroll up or down no matter what i do. I have removed all other mouse softwares on my pc, deleted the driver and reinstalled it, and did basically every solution found on the web. I even tried it on my laptop as well as my mac and still nothing. I have come to the conclusion that it is a mouse defect. I have called customer service about 7-8 times all at different hours and no one ever answers and for that reason I am giving this product a 1 star.

Mouse wheel does not work