What are you using for a soundcard, and what version of the driver? (right click my computer, go to manage, device manage, right click sound device, properties)
Just a shot in the dark--but try uninstalling your sound device completely from the device manager, then run the game. If it changes, you have audio drivers that are horribly coded, and I would look for an update.
I would also be certain you are running the most current drivers for your video card (www.guru3d.com usually has the newest editions ready to DL).
As far as getting a screen shot, you can just hit the "print screen" key on the top right of your keyboard (near F12) then open up Paint, and paste it
Keep trying things, and posting, we will figure this out.