Latest Unreal Tournament segfaults on Slackware -current?

Has anybody had any success with the latest Unreal Tournament for Linux? I played this game many years ago and was keen on getting to grips with a native Linux version, however all I managed was a big chunky segfault :(. Anybody have success with this one? Download details are here...

I am aware that there is an older version on SBo which will be my fallback if nobody else can get the newer version running.