Mouse wheel zooming erratic


I have a Microsoft Comfort Mouse 4500, and the CTRL+wheel up/down zoom behavior is erratic. I have to scroll the wheel a few times for Balsamiq even starts to zoom, and once it does, it jumps multiple levels at once. This doesn’t repro with my previous mouse, Microsoft Comfort Mouse 6000, and scrolling works as expected in other programs (Chrome, PS/AI, etc.).


Ugh, I’m sorry about that @tabrezm - I imagine that’s becoming annoying.

You mentioned you weren’t able to reproduce it with your other mouse. Did you mean in Mockups 3?

Rather than try to troubleshoot this here, would you mind shooting me an email at I’d like to know what OS version you are running.

Sorry again for the trouble. Let’s see if we can get it sorted :).