[Bug 17027] New: Pressing a drop button for select date in monthcal component causes quick monthcal appears and dissapears immediately (could not select anything)

http://bugs.winehq.org/show_bug.cgi?id=17027

Summary: Pressing a drop button for select date in monthcal
                    component causes quick monthcal appears and dissapears
                    immediately (could not select anything)
           Product: Wine
           Version: 1.1.13
          Platform: PC
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: comctl32
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

Created an attachment (id=18826)
 --> (http://bugs.winehq.org/attachment.cgi?id=18826)
Trace (WINEDEBUG=+monthcal) of the events logged on click to dropdown button

Bug appears in Medialog software (medical database).

When user press a drop down button to select a date, monthcal component
splashes (I can see it appearing in the correct place) and momentaly
dissapears. So user cannon select date.

The try with using native comctl32.dll was succesfull (monthcal workd as should
be), but it slows down wine and makes other controls components (like buttons)
looks as defective.

Rerlicates in all instances on monthcal component in the Medialog application.