Haha, thanks a lot.
That driver date doesn't specify the actual version number of the driver, but the latest driver on the ATi site (the company which makes the Radeon) is dated mid-2006, so it's almost certainly newer. Go to
this page and click through the dialog and pick your driver.
Installing that new driver should improve your system performance overall, and hopefully it will solve your current problem as well, but I don't know the odds of that.
There are some
OOTP display options listed in some of the config files in the game directory. If updating your Radeon driver doesn't help, maybe we can go there next and try to manually toggle the switch that the game is saying needs to be done. This whole field is Nutlaw's specialty though.
Since yours is the first report of a problem like this, I'm inclined to think that there's something about your system's configuration which is causing the problem. Otherwise, I'd almost say that Markus himself needs to see this.