I have Corel Draw x7 and my mouse wheel won't zoom; I went to Tools>Options>Display and the default setting for mouse wheel action is set at zoom, tried switching it to scroll and it won't scroll either. When I push the scroll wheel down it will Pan, so there doesn't seem to be anything wrong with the physical button. I tried this with two different mice, same results. The scroll wheel does work for scrolling down documents in other applications (like word documents and web pages). Just checked for Corel updates and I'm on the most current version. Any ideas?
Thanks for the suggestion. I had the same issue as agbraatz. Uninstalled the mouse driver, rebooted the system and the zoom function works now using the mouse wheel. Thank again.