I can't zoom out with the range finder or any vehicle computer (Gunner, Commander, etc.).
The zoom is locked to the maximum position and I can't zoom out at all.

I've found a way to fix that but it's really convenient:

1. Press the map key (',') while having the tool (Range finder or computer) in the zoom mode ('MRB').
2. Release the zoom button ('MRB').
3. Press the map key again (',').
4. Zoom is now working but the view is locked in zoom mode ('+' or '-' to zoom in/out).
5. Open the mp (',') while pressing the zoom button ('MRB').
6. Release the zoom button ('MRB').
7. Press the map key again (',').
8. Normal view (FP or TP view) is back.
9. Go to #1 to use the tool (Range finder or computer).

A friend of mine has exactly the same problem.

This bug is very annoying in multiplayer games.