http://www.blitzbasic.com/b3ddocs/command.php?name=CameraRange&ref=3d_cat
Try to keep the "far" value as small as possible (try reducing it until your models are clipped from the view), and "near" value as big as possible, meaning values greater than 1 if it does not clip your stuff off. Experiment.
CameraRange is "exponential" meaning that it has more near precision than far - so if your far value is much greater than your most far away model, you're wasting precision there, and it shows as flickering.
Try to keep the "far" value as small as possible (try reducing it until your models are clipped from the view), and "near" value as big as possible, meaning values greater than 1 if it does not clip your stuff off. Experiment.
CameraRange is "exponential" meaning that it has more near precision than far - so if your far value is much greater than your most far away model, you're wasting precision there, and it shows as flickering.