Gilt auch für CotVNC und den eingebauten VNC-Server:
Q: I am using an International keyboard (or keyboard layout) and the characters don’t come up appropriately.
A: Currently OSXvnc doesn’t handle this as well as we would like. Part of the problem is that if both the remote and local users are using an international keyboard layout the keystrokes actually get double-corrected, thus producing the standard US keys. Try setting one of the keyboards back to US; this works a bit better. (via)