Thanks, those are good things to look at.
Campbell, the switch slowly just stopped working slowly. Seems like a common problem.
Nikojo. No water in the light, and no previous problems with it as far as I know. I did just replace the tail lights at the same time. So thats another factor...?
The one rear tail light may have some problems in the wires by the wheelwell, but it seems like a strange coincidence that when I opened the dash the brake/dashlight thing started happening. I feel that maybe I pulled the wires up, or something and maybe they got loose in the dash area.
Will dig into it tonight. Thanks for the ideas.