Strange, I can't reproduce this exact thing (tried with Clock, Slideshow and Ruler), but I have another problem with dragging that could be related.
For me dragging works until I focus another window (e.g screenlets-manager). If I then try to drag a screenlet (directly, before focusing it first) sometimes it will work and sometimes (approx. 1 in 10 times) it won't. Screenlets manager looses focus which would indicate that melange window picked it up, but the screenlet stays in place.
Strange, I can't reproduce this exact thing (tried with Clock, Slideshow and Ruler), but I have another problem with dragging that could be related. manager) . If I then try to drag a screenlet (directly, before focusing it first) sometimes it will work and sometimes (approx. 1 in 10 times) it won't. Screenlets manager looses focus which would indicate that melange window picked it up, but the screenlet stays in place.
For me dragging works until I focus another window (e.g screenlets-