This doesn't happen with the current version or krdc as a client or with the RealVNC windows client. It does happen with the maemo VNC viewer [1] but only with krfb. Different servers in combination with that viewer don't have this issue: vnc4server (same host) x11vnc (same host) RealVNC server (windows)
[1]: http://vncviewer.garage.maemo.org/ -- To UNSUBSCRIBE, email to debian-qt-kde-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org