[Bug 17000] New: a slight display problem in regedit

http://bugs.winehq.org/show_bug.cgi?id=17000

Summary: a slight display problem in regedit
           Product: Wine
           Version: 1.1.13
          Platform: PC
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: programs
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

Frankly, I'm not sure whether it's a bug in wine,
problem with xorg-server 1.5.3 or problem with
xf86-video-ati, but let's start here.

I'm reporting it as a bug against 1.1.13,
but IIRC it happened a few versions ago.

It did work at some point, as I don't recall
having this problem when I was filling bug 14627.

So now the problem:
if I expand enough branches in the treeview of regedit,
both text and the expanding "+" on the treeview turns
black (usually on the branches below the expanded,
but sometimes also above it). If I collapse the branch and
re-expand it, it gets redrawn correctly. It gets redrawn
correctly also if I move the window offscreen for a moment,
but not if I simply move it on the screen.
xf86-video-ati is set to EXA.