I need logs to check it. Read my sig.
I would recommend to clean up DLC folder and try to redownload the files, since there is a chance you got it corrupted.
Ok logs?
It says: "двигать панель мышью" (google: move the mouse panel)
Maybe it tells you that you can move the panel with your mouse. Did you use CTRL by any chance? You probably have a mouse pointer over some element that is movable with mouse.