[Bug 20389] New: Portable Thunderbird 2.0.0.23: Close button must be clicked twice

http://bugs.winehq.org/show_bug.cgi?id=20389

Summary: Portable Thunderbird 2.0.0.23: Close button must be
                    clicked twice
           Product: Wine
           Version: 1.1.31
          Platform: PC-x86-64
               URL: http://portableapps.com/apps/internet/thunderbird_port
                    able
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: minor
          Priority: P3
         Component: -unknown
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

Since Wine version 1.1.30, clicking the close button on the Portable
Thunderbird window once does not close the window.  As of version 1.1.31,
clicking the button again immediately after the first click does close the
window.

Steps to reproduce:
1. Open Portable Thunderbird, and wait for it to finish loading any messages.
2. Click the window's close button (the X in the corner).  The window does not
close.
3. Click the window's close button again.  Now the window does close.

Another scenario possibly relevant to solving this bug:

1. Open Portable Thunderbird, and wait for it to finish loading any messages.
2. Click the window's close button (the X in the corner).  The window does not
close.
3. Click the File menu.  The File menu is highlighted, but does not drop down.
4. Click the File menu again.  The File menu now drops down.
5. Click the window's close button again.  The window does not close.
6. Click the window's close button again.  Now the window does close.

Application settings are defaults, Windows XP.