[Bug 12799] New: Notepad++ : auto-completion window appears with a title bar which is not the case under windows

http://bugs.winehq.org/show_bug.cgi?id=12799

Summary: Notepad++ : auto-completion window appears with a title
                    bar which is not the case under windows
           Product: Wine
           Version: 0.9.60
          Platform: PC
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: P2
         Component: -unknown
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

Auto-completion feature works fine but when I use it, the window appears with
the title bar which is not the case under windows. This title bar hide the text
behind which prevents me to use this feature. (see attachment)
This problem occurs with all wine versions I have tested: 0.9.5x up to 0.9.60. 
kubuntu 7.10
notepad++ version: all recent one I have tested