Left-drag in the viewport makes the camera move around. Is there a way to disable this somewhere in the settings? I'm using a tablet in UDK for mesh paint, or painting on a Landscape, and suddenly the view moves around. My initial clicks are often misinterpreted as "move" instead of "paint".
I'd love to know this too. We were able to get around it on a previous project, but only have an engineer with native access did some low level stuff for us. :(
This is something that's always annoyed me and I'd love to hear solutions. It's one of the reasons why I'll often lock the position of a terrain/landscape when working on it.