stove control panel shuts down

I have a Kitchen Aid gas stove (the convection style one).  when the
stovetop  has been on for a long time, the control panel shuts down
and all the lights go off.   does it sound like I need a new control
panel?

=====
Kate, http://www.cs.colorado.edu/~kolina/advantages-of-formula.html  
Mom to Ursula (9!), Sage (6.5), Benno (2.9)  
http://www.fastcompany.com/magazine/77/walmart.html - The Wal-Mart You
Don't Know (and need to know)