Can't Mouse over the "X", Min and Max in the Upper Left corner when Steam is running
I'm having this very slightly annoying problem when Steam is running in the background - e.g. the Steam icon appears in the upper right system tray, but no apps are running.
It doesn't matter what application I'm using, but when I attempt to mouse over any of the window control buttons in the upper left corner of the screen...the 3 control buttons (X=close, minimize and maximize) disappear only to be replaced by the Ubuntu version information.
The workaround to be able to close a window is to right click on the corresponding program item in the left-side app tray and select Quit (or whatever), but it's just a little bit annoying to have to do that.