On the way to Murphy, Friday night, after driving about three hours, the headlights (on high-beam) started blinking and then went out. After turning the switch off for a few seconds, they came back on when switched on. They would go out again the same way whenever switched to high. I wiggled a few wires under the dash and noticed the dimmer switch was super hot. Actually melted a hole through the plastic on the top terminal off the three. If the high beams aren't used it preforms as normal. I replaced the dimmer switch but same symptoms appeared. Problem has never occurred before. Still happened tonight, high beams on maybe....30 seconds. The dimmer switch hasn't gotten hot again, though it is slightly warm to the touch on low beams. Never noticed if that is normal before. Can the circuit breaker go bad? If not, it's drawing to much amperage I suppose? Or a bad ground? Headlights work normally other than the CB kicking out and on.