Originally posted by mrmichael:

I had question about mouse wheel which doesn't work for terraforming. Option "Mouse-3" Remove doesn't work even if I try to remap it to a different key. Anyone has same issue and maybe solution?

1) Delete mouse drivers OR Install mouse drivers.
2) If your mouse's driver app has mapping - try remapping it.
3) Repair the scroll wheel click.
4) Get a better mouse.