I have a WRT54G router and I'm trying to communicate with my son's laptop in a room one floor up and two rooms over. I fitted the high gain antennae to the router and now he can spasmodically get reception (signal level low) but not reliably. Did I do the right thing in going for the high gain antennae? Would I have been better off going for directional antennae (if they exist)? Is there any way of boosting the receptivity of the laptop, which has inbuilt wireless capability (but no external antenna)? Is there anything else I can do?