I took this screen capture with ScreenShootPlus 1.1.5 and it is unmodified. This is what I'm talking about, right here:
The run of that line looks repetitive to me. I've never seen it like that. If anybody else's computer is doing Work Units from approximately the same time/place as me, Sunday October 12th, 2003 from the same or roughly the same coordinates, please have a look. Thanks.