defroster fan switch

Apparently the switch on my dash that turns the heater/defroster fan on has quit. Does anyone know how much trouble it is to change this out and where a good place to buy one is? Thanks for any help you can give.

check out this thread
http://www.automotiveforums.com/vbulletin/showthread.php?t=587497

I had that same problem with the fan not working. I explained how I fixed it in the thread above.

My wife's 98 recently lost all but one setting... I had to replace the Blower Motor Resistor...