Hi, I have an Amstrad PVR3 box and in the last couple of days it's developed a curious intermittent fault. Everynow and again without using the remote the channel will change to the next one up or down. You then change it back and it changes again. It may go to the tv guide, then into the planner - it may go through a few channels on the on screen search bar and then stop. It's as if the sky remote has a problem, a stuck button or something - except it happens even with the batteries out of the remote. The red light always comes on on the box when thiese phantom operations occur. Help?!?!?