[bondo]

i cant really tell ya because ive never had this problem but i can tell you that replacing it is worth a shot.
you can replace them for under $20.00 (if you dont already have an iron and solder)and have tools/supplies leftover for other modifications.

replacing the resistors is incredibly easy due to location.
put the board in your helping hands or vise and grab a resistor with some nippers or needlenosed,apply the iron to the opposite side and it will pull right out.same for the second one.
(the resistors are pretty chep(under 2 bux) so grab a few incase it happens again. these resistors can be found at rat shack but i wouldnt know the series. maybe donzii or someone can find that info.)
use a de-solderbraid to clean the traces
bend the leads of the resistors at 90 degrees,place the leads through the board(direction doesnt matter), get a dab of solder on your iron and touch the lead as close to the board as possible.
this will cause the solder to "wick" to the other side forming a nice clean joint.
do this for all four leads,nip the ends and your set.

the whole thing(including reciever removal) should only take about 15 minutes.

cheers,
Bondo