I am new to mac world. I want to use chicken vnc to control a pc. The pc already runs vnc server(windows software of course). I use pc vnc viewer from other pc to see the specific pc running vnc server and there are no problems. But there are problems in mac vnc. I cannot connect at all. One of the messages: - rfbconnection. connection terminated. authentication failed-server reports: too many security failures. I use computers so many years but I cannot understand where the problem is. I test it with and without authentication but I had no luck at all. Networking with pc works fine(i can see its hard disk). Pc run vnc server edition 4.1.19(from realvnc). Please help me to connect to the pc, I really need it.