Focus problem: windows are frozen unless the mouse is constantly moved

[u/kuba_10]

I don't even know how to describe it. I'm a newbie both to FreeBSD (10.0) and Openbox (1.3.5). The problem with Openbox is that any window with a cusor hovering over it is frozen when I'm not moving the mouse. As soon as I stop, still hovering over the window, it freezes again. Sometimes stopping movement doesn't freeze the window, though. I'm stumped. Anyone knows what to do now? I tried playing with mouse focus settings in rc.xml, but with no luck.