Hello - I has recently noticed that my terain control knob has stopped doing anything. When the LR3 is in "normal" mode (not 4x4 or elevated or anything), the knob will turn but nothing will happen. It says in the normal mode. Anyone seen a similar issue or have suggestions for fixing it, I live in New England andf would really like the snow as well as the sand option to work again. Thanks, -Ssth