Hi,
I try to use KRFB and KRDC.
I have these sort of screen when I connect to the other PC and open a window (it's ok for the desktop, it happens only when I open a window)...
:
My PC has KDE 4.2.2 (Mandriva 2009.1), and the other has a version of KDE 3.5, I think (Mandriva 2008.1)