I have recently loaded two games on my Dell dimension x450 running on Windows 98. the games are microsoft train simulator and Zoombinis mountain rescue. In both instances the screen iamge is not centered. i.e. part of the video image is off screen to the left with a blank area on the right of the screen. I have ecently updated my drivers to my video card which is a Riva Diamond Viper 16 MB TNT 2 . Strangely enough this does not happen on all programmes I load. I have tried changing the settings in control panel but to no effect. I wonder if anyone could advise me on possible next steps.