I had the flashing headlight problem about 4 years ago on my 1994 Ford Mustang. (Makes for quite a "thrilliing" ride after dark on country roads -- and NOT in a good way!)
At that time it was the big switch on the stalk off the steering column that controls the bright lights, turn signals and wipers -- once that was replaced, the problem was no more...
Until this past week -- I'm having it again!
This time, I was in a really bad spot for it with still a ways to go before home, so I experimented and discovered this -- if I pulled back on that stalk switch (which flashes the bright lights) the brights would stay on (they wouldn't stay on if I pushed the stalk to engage the bright lights). I am _guessing_ that it's that switch again, and it's in the shop to get that replaced... But of course, now that it's in the shop the lights are staying on just fine. If you find out anymore, please let me know; if I do, I'll do the same for you. Good luck! (and don't drive after dark 'til you get it fixed!)
-Anne
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