I've been having issues with the orbiter's 4 arrows that do the channels, seek, volume, etc, leaving a black imprint on the screen and generally being flakey (I've mentioned this in a few posts).
Anyway, having disconnected the dongle, it looks like it's a problem associated with the Gyration Go Air Mouse.
To be more precise, when I press one of the three shortcut buttons, it flickers uncontrollably, as if the button was being repeatedly pressed. A quick reload or orbit regen is then required to snap it out of it. Is this a known issue? Can anybody recommend a fix?