> Don't know if this is it, but do you have pkg-config installed? > > Later, Seeker I do have it installed. I installed gtk1.2 (I think) -dev and evey thing works... except the GUI itself. I am sure that it is running (I looked in KDE System Guard), but I see nothing at all. I ran it via alt+F2 (Run command) gmplayer. I know it works, but there is no programme GUI to see. What is wrong? Thank you in advance.