I am using x11vnc server on my linux box and TightVNC
viewer with Tight encoding on my WinXP box.
In XP I use Ctrl+c and Ctrl+v combination for copy paste
operations in my local applications.
If by mistake the viewer window remains in focus then
session gets terminated and ctrl+c keys on linux box do
not get released, as a result the window on linux box
starts scrolling continuously with command prompts (for
example open shell on linux box and press ctrl+c
continuously. The same thing appears in this scenario
automatically) till I go there and press Ctrl key.