What is odd is that I have had tha that happen randomly, specifically when I was moving the window around or switching focus between that window and another. I am not sure what causes it, but it actually does work just fine. What type of graphics card do you have? What drivers? I am running an Nvidia card with the proprietary drivers. If you are running something different, perhaps there is a goof-up in the driver or some sort of conflict. You might want to look at opening a ticket with WineHQ. The screenshots came from my system, so I know it works there, but Wine can be picky, especially with certain graphics cards or drivers.
Please use pastebin to post your log. I don't want to download anything. lol. Wine spits out a lot of what look like errors, but usually can be ignored (like almost everything that says fixme.).