Hi Dave
I'm sorry to ask an obvious question, but you do have the text selected? I have just tried everything I could think of, and was unable to stop my mouse wheel controlling all the parameters you mention. That included turning off GPU acceleration, which is needed for those right click and drag operations. I also uncheck all the zoom options in Preferences > Tools (and restarted Photoshop) and the only thing that made a difference was Animated Zoom, which made mouse wheel adjustments a bit jerky.

So I am stumped. Could it be an operation issue? I wondered if you could set the lines scrolled to zero, but as you can see below, it would not go below 1. If you work it out yourself, please come let us know what was happening.
