In this game:
http://www.planetmule.com/hi-score-game/game?game_id=22476The price the store was offering for crystite was $104. I owned no crystite, and only had $103 in cash, so I decided to be cute and try to push up to the buy line, knowing that it wouldn't work. Well, it DID work... kind of. My character moved up to the $104 line, same as what the store was offering. And then, the bugginess started:
I could no longer back away from the $104 line. And whenever other folks tried to sell to me, it make the "ching" sell noise, but nothing happened. No money or goods changed hands, the noise just kept chinging. And the timer kept still while people attempted to sell to me. Since I couldn't move away, the only way to break out of this was for the crystite sellers to move back up, away from my buy line, so that the timer could run out.
So, a very annoying bug (for them!). Later on in the game, both piete and I had network time outs and were disconnected, but I doubt that that's related.