I live in WA and it is still cold here ( down to 35 at night) and i get the HARD DISK NOT FOUND all the time but i have found that a combination of turning the hijack temp threshold to OFF and then when my truck is warmed up turn the heat on so it comes out of the front vent then kinda warm the player up with the dirrect warm air. I know its kinda silly but its worked 100% of the time ......im going to tap into my front vent work and route a little tube to the rio chassy to blow the warm air dirrectly on the rio whenever i have my enviromental controls on in the truck. That way my rio is able to have the same temperature comfort have.........