Yeah, I know.

Even in Safe Mode with the latest definitions, I don't think I've found what I'm looking for.

Search & Destroy found nothing. AdAware found a CAB file with SyncroAdX.dll in it, but I don't think this is infecting my system. My AV found Worm/Rbot.LD.1 (in prompt[1].htm) and JS/MediaTickets.B (in mtrslib2[1].js) but I've looked at both of these, and I don't think that they infected my system either.