My US Robotics Bt848 based capture card has suddenly started to give me pictures where there are vertical bands superimposed on the picture, going from the left side to about a third of the way to the center, and graduating in width from widest at the edge to thinner nearer the middle. Odd! This persists after power cycling, and occurs in both in Linux and Windows. Has anyone else experienced this? Is this the typical death throes of a Bt848? Ben