[Bug 20176] New: Neverwinter Nights : Blank screen instead of menus

http://bugs.winehq.org/show_bug.cgi?id=20176

Summary: Neverwinter Nights : Blank screen instead of menus
           Product: Wine
           Version: 1.1.25
          Platform: PC
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: -unknown
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]
                CC: [e-mail]

This regression was reported a while ago :
http://forum.winehq.org/viewtopic.php?t=5456&highlight=neverwinter . A blank
screen appears instead of the menu, and the game executable has to be killed in
order to return to the desktop. No console output appears.

The problematic Wine version reported in the forum topic is 1.1.25. I did the
regression test between releases 1.1.23 and 1.1.25. My result is:

b5da7f49d332ed5d64be1256e14035af74a7efa2 is the first bad commit
commit b5da7f49d332ed5d64be1256e14035af74a7efa2
Author: Henri Verbeet 
Date:   Thu Jul 2 10:01:37 2009 +0200

wined3d: Don't reuse random GL contexts during initialization.

Obviously there's no guarantee about the state of such a context. The
specific
    problem is that it might have GL_UNPACK_CLIENT_STORAGE_APPLE enabled,
causing
    some glTexImage2D() calls to fail, but it's a bad idea in general.

:040000 040000 91e52fba45ce42a6e4c1fce4281308745aea44cf
ae1eecf091bdc72d34e708399ebd1670b198e00f M      dlls

It is my first regression test, and I followed the instructions in the wiki. If
this is inaccurate, I would like to have some advice on how to make better
regression testing.