Last night on the way home I smelt something burning (electrical burn).  It
went away and then came back.  After a while my dash lights and head lights
began turning on and off.  Through the darkness I realized that smoke was
coming out of my dash (above the headlight switch)  I pulled over and turned
the switch off.  I had to drive the rest of the way home pulling the brights
on.  Is this what happens when the switch goes bad, or is it more serious.

thanks
chris