I use Dex every day. There is an issue with the photo app (Gallery) that is driving me crazy. If I try to double click on a photo to open it, the app detects slight movement which pops a "copy menu". The app needs to have a slight dead zone so that it ignores the inevitable every-so slight movement when you double click on the mouse. For now, I have to hit Esc to remove the pop up (move/copy) window, and try again and again. I could use the mouse on a hard surface rather than a mouse pad to minimize the slight movement that happens on a double-click, but I should have to do that.