When this error occurs, it means you need to update the device drivers for your video card. To find out which graphics card you have, hold the key and press R on your keyboard, then type "dxdiag" in the dialog box that pops up. After you hit the OK button a new dialog box should pop up with a series of tabs, and the "Display" tab should tell you all the information you need to know about your video card.

Once you know that make and model of your video card, you can go to the website for your video card vendor and download the latest drivers. Here's the driver pages for the most common video card vendors:

• nVidia
• ATI
• Intel (The Intel page isn't very intuitive. To find your card, hover over the "Graphics" link on the left and follow the menus to locate your model.)

The behavior of Mouse Look is affected by the current state of both "Turret View" (normally toggled with the M key) and "Camera Mode" (normally toggled with the Delete key above the arrow keys). You need to have Turret View turned on to enable Mouse Look to pan the view side to side, and you need Camera Mode set to Funky to allow tilting the view up and down.

There only seems to be a problem if the Full Version client selects a Tank which doesn't exist in the Shareware Demo prior to connecting. If the Full client selects a Shareware tank (Liquid Falcon, Nemesis, or Dreadnought) things should work.

A Full Version server can be configured to be compatible with Shareware clients, but most likely are not, so it is best to only connect Shareware to Shareware and Full to Full.