I have an '03 Silverado Z71 extended cab w/ 5.3L engine, 4WD and about
56kmi.  A few weeks ago my passenger-side power window stopped going up
and down.  When I press the power window button from either the driver
side or from the passenger side there is an electronic click sound like
there has always been but nothing more.  Could this be a fuse issue or
possibly a bad motor inside the door?  I do have an extended warranty
which is still in effect, however my thinking is if it was something
simple like a fuse, I could just replace it and be on my merry way.  
Everything else on the door works - power lock, power mirror (see
below), LED turn signal, etc.  I am not very mechanical, so at this
point disassembling the door is beyond me - perhaps a Chilton guide is
in my future...  In any event, I can always go to the dealer but it's a
PitA during the work week for me to leave the vehicle.

Unrelated, but while I have everyone's attention, my power mirrors are
the ones w/the built in signal LEDs and defrosters.  I've had the
passenger-side one replaced once under warranty because the defroster
stopped working and it has happened a second time but I didn't get
around to going to the dealer in the winter when they could test it.  I
was wondering if anyone else has had this problem.  Again, it's a
warranty issue but curiosity has me wondering...

Thanks,
Kevin