Been running the program fine until today when then this error came up on starting: "Runtime error 62 - Radar Contact rc4module - read_callsigns". A search here found a thread suggesting deleting then downloading c4 from the server. Did this. Despite the new copy, the error persists. Help! Thanks

Your rcv3.dat has become corrupted. Send an email to [email protected] asking for a replacement rcv3.dat file and I will send you a fresh copy.

thanks rick worked like a charm