Thank you for your answers.

I am working on the remote control of a station in a classroom of teaching of foreign languages.The students are brought to view Vcd videos. The teacher wants remotely to know where they are in vidéos. The video must be fluid on Nokia 770.

With the installation of Vnc carried out under Maemo SDK, made video is incredible almost perfect. From where my question: is the processor of my PC there it for something or processor ARM of Nokia would have it the same performances?

In addition there remains to me the problem of the sound which I cannot transfer on the 770 for the moment