how to delete a groupchat on iMessage

HI,

In iChat 4 through version 6 it was impossible to delete info about the group chats you had been in when looking in the File Menu > Go to Chatroom and seeing the list.

Messages install seemed to remove that but I would not be surprise if the behaviour is the same.

9:57 PM Thursday; February 23, 2012

Please, if posting Logs, do not post any Log info after the line "Binary Images for iChat"

 iMac 2.5Ghz 5i 2011 (Lion 10.7.3)
 G4/1GhzDual MDD (Leopard 10.5.8)
 MacBookPro 2Gb (Snow Leopard 10.6.8)
 Mac OS X (10.6.8),
"Limit the Logs to the Bits above Binary Images."  No, Seriously