In Xubuntu 13.10, many apps, such as Bluefish, Calibre and Firefox, when launched put their window off-kilter, high and to the right, so the top of the window's frame is concealed. Pressing {Alt-Enter} x to revert to ordinary sizing is vexing. For programs which don't have size and position settings, how may I fix the location and size for opening windows, so the buttons at the top of the window are not hidden?

Tried using settings manager to click on Window Manager Tweaks, select the Placement tab, and slide the bar under "Minimum size of windows to trigger smart placement:" all the way to the right. This did not help.

It may be relevant that Panel 0 is at the top, and Panel 1 is at the left. Metacity is not in use. It happens whether or not Display Compositing is enabled in Settings | Windows Manager Tweaks | Compositor.