Thx for your reply and your efforts, mate.

The reason why i am so keen on using the mbp is because i can use 2 displays this way.

Unfortunately, if the mouse is not being multicasted, it's useless for me.

I think it was the broadcast version of synergy 1.3 which i could download here. But unfortunately, i can't use it because of some service issues on vista. I would have to reinstall vista or... shall I set all services from "manual" to "automatic" before that? Could that help maybe?