Diablo III's in-game economy is in serious trouble tonight after users claim to have discovered an exploit in the game's latest update which lets them duplicate gold.

Seems a glitch is letting people cancel a transaction in the Diablo III auction house before it's completed, with the result that any money involved is doubled.

The game's forums are overflowing with users reporting/complaining about the exploit, calling for bans and rollbacks of the update as the instantaneous inflation is destroying Diablo III's economy.