I topped off the oil in the gearbox as well as the engine, which was down just a tad. I checked the final drive levels, which looked okay. I've ridden it around a tad and nada. Haven't seen nary a drop on anything. I think it's mocking me. Or, it overheard us talking about going to Brian's house and it decided to shape up.
I've got the same R1100S with the identical leak going on. I'm going to clean it all up really well and keep an eye on it to see if I can determine the source. In the mean time, Chris, did you run into any further trouble with yours?