http://bugs.winehq.org/show_bug.cgi?id=17970
--- Comment #22 from John Voltz johnvoltz@gmail.com 2010-06-01 09:57:46 --- The demo does exhibit the bug. You will get an error message something like the following:
Cannot focus a disabled or invisible window at 1415D5AB. ADVPCB.DLL, Base Address: 140F0000.