I have the same settings and problem as Jackal. If I chose fullscreen false, my first problem returns.

That didn't work. With fullscreen true, dosbox don't work at all it just returns to windows.

I have a problem with Dosbox 0.61 and those cvs versions that have the opengl options. If I try to use dosbox with opengl in fullscreen the screen becomes blank and the power indicator on the screen twinkles. If I run dosbox in a window, dosbox runs ok. Is this a problem of dosbox or is it something …