[Bug 17690] New: Hammer Editor window moves up and left

http://bugs.winehq.org/show_bug.cgi?id=17690

Summary: Hammer Editor window moves up and left
           Product: Wine
           Version: 1.1.16
          Platform: PC-x86-64
               URL: http://games.softpedia.com/get/Tools/Valve-Hammer-
                    Editor.shtml
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: -unknown
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

When the mouse is moved or clicked over the right-hand menu, the window moves
up and to the left by one pixel, for each pixel of mouse movement or for each
click.

This is a fresh .wine, using Fluxbox as the window manager.

This doesn't happen in a virtual desktop or in unmanaged mode.