[Bug 34418] New: regression: Finale NotePad 2012 installer splash screen appears as black box

http://bugs.winehq.org/show_bug.cgi?id=34418

Bug #: 34418
           Summary: regression: Finale NotePad 2012 installer splash
                    screen appears as black box
           Product: Wine
           Version: 1.7.0
          Platform: x86
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]
                CC: [e-mail]
    Classification: Unclassified
   Regression SHA1: 84fd7de0f7c0146b73f7b8d9cd364c9e6a7f3096

Created attachment 45817
  --> http://bugs.winehq.org/attachment.cgi?id=45817
the Finale NotePad 2012 splash image as it's supposed to appear

Program: Finale NotePad 2012 (free download)
Download URL: http://www.finalemusic.com/products/finale-notepad/
Commit causing regression: 84fd7de0f7c0146b73f7b8d9cd364c9e6a7f3096 (server:
Don't trigger repaints on position changes for layered windows.)

Reproducing the Bug:
1) Download Finale NotePad 2012.
2) Run the installer.

Result: Before the installation dialog comes up, a splash screen is displayed.
In wine versions prior to the above-mentioned commit, the splash image (see
attachment) displays correctly. In wine versions after the commit, the splash
screen appears 100% black instead. Note that on faster PCs, the splash screen
appears and goes away rather quickly, so don't blink ;)

This bug is present in the latest git as of 8/30/2013. All steps of the
regression test were run using a fresh ~/.wine profile.