At home I notice that the wifi set up which is fine (full bars on any laptop anywhere in the house) doesn't show the same strength on the droid. Standing 10 feet from the router with no obstructions still only yields 3 of 4 bars. Here on vacation I get 1-2 bars on the lappy and no recognition of the network on the droid. Sometimes even my iPhone buddy sees what I don't.
Is there any tweak to improve wifi reception?