sounds funny, i need a little more info, can you Debug VNC2Me SC and post the last few lines (without any private info) in your reply.
also, when the error occurs, can you press "CTRL + C" (keyboard copy shortcut), with the message box active to copy the text of the message. these two may help me solve the problems your experiencing.
these errors have not occured to me (or my clients) in the past, so i do not know why you are seeing them.
also, can you tell me what OS your running the client and viewer on, what OS and version is your SSH server (if you know)
let me know how you go. failing this, you can PM me a link with your compiled app, and i will see what i can see.