by Daube » Fri Feb 25, 2011 11:01 am
You have simply "unselected" the zoom.
+ and - are assigned to "increase selection" and "decrease selection". The selection can be several things, the zoom is one of the examples, the magnetos are another (pressing M key).
If you want to reselect the zoom, you'll have to use the key that resets the zoom to 1x. I don't remember the original assignation in FSX, I modified the keys to make them identical to FS9, so for me it's BACKSPACE.