I have a new installation comprising of 1-ACS R7 Processor, 3-0x12 Modules and 1-Partner Messaging R7 w/4 port License. Msg Waiting Lamps on extension #'s 11 & 12 will not light when new message is received. These are the only 18D's on the system, the rest are 6D's and work fine. Operator console is a 34 Button. Anyone seen this before? I have tried everything to confirm working lamps, working voice mail boxes. Deleted and rebuilt, etc... Thanks