10.4.1 Aleph on Win 7 SP1
I'm not exactly sure if this behaviour is intended but its hard enough to use that I'll log it as a bug.
I define a user layer and create a text block on it. Now, if the text block is not quite where I want it I tried to drag it to a new location.
What happens when I do this is really unexpected. The text block moves on the trajectory of the mouse movement that I establish but at very high speed. It far outstrips the mouse pointer speed. It continues to move in that direction until I release the mouse button. I had expected that it would work like a regular drag with the object being dragged at the location of the mouse pointer.