Very often when I am working on an Excel sheet, the scroll wheel simply doesn't work. This happens specially after I use the horizontal scroll, which makes it totally useless. Besides, after that happens, when trying to click on a cell, it selects a different one, like if the mouse pointer had an invisible offset. I have to use navbars to reset that offset. Totally disappointed with integration, it doesn't help with productivity at all, worse yet, this mouse has worsening it.