Originally Posted by
jgeldner
don't pull the cable out though - just undo the bolt on the derailleur to give it some slack...
the levers aren't really serviceable, so don't bother playing around if it doesn't click when it's free
Perfect! I loosened the bolt, which allowed it to travel a bit, and I am now able to shift again. I tightened the bolt back up, but it might take some repositioning.
This might sound weird, but it seemed like the shifter was stuck in a 3rd-gear position, even though it's a double. (And there was no audible noise from the front derailleur when I was riding home, so the derailleur itself wasn't in the 3rd gear position. If that makes sense.

)