First I would like to say hi. I am new to the site and new to Polaris. I have owned My 2004 Sportsman 500 for about 6 months and have put about 200 miles on it. I love the bike but today I was riding in some light snow, about 2 inches, and the 4wd started engaging by itself. I could see and feel the front grab when the rear tires would spin but the switch was off and steered like normal and I could spin the tires for a little before the front engaged quite3 harshly. I jacked the bike up and could not get the fronts to engage until I hit the awd switch on then off again and they would not disengage. any ideas? Btw I love this bike and am looking for a Sportsman 800 now to beat my brothers KingQuad 700, lol.