I have a 95 s-10 extended cab. When I am criving at night with the high beams on after about a half hour they start on flash on and off. And when I say off I don't mean that they go back to dims. They go off(well the realy go to the daytime running light mode but they just aswell be off). And sometimes it is for a second but mostly they just flash. I put it back on dims for a while then switch back to brights it takes a little bit and they start flaxhing again. This started in winter so I just though that having the heater on full blast was making something kick out but now it is doing it when I have the ac running. I can hear the relay under the dash clicking when this is going on. I need to get this fixed before the decide to go out and not come back on cause I am now going to be driving in the dark everyday. I am woundering if it is my relay just getting weak and junky or if I have soem other problem that I need to find. Hopefully someone else has seen this problem.