http://bugs.winehq.org/show_bug.cgi?id=33035
--- Comment #5 from Philipp Brueckmann ph.brueckmann@bluewin.ch 2013-02-26 11:27:46 CST --- (In reply to comment #4)
That is a workaround, not a real solution.
I realized that all my ABACOM - programs have problems with those "allow the window manager to...." options in wine configuration. The problem of disappearing sub-windows when clicking in the main window is now solved too since I disabled these options. This is valid for all my ABACOM-programs (SPlan, Layout and Frontdesign)