I recently purchased a gigabit AEBS. One of the primary reasons for purchase was for reliably streaming HD from my network to my MBP while attached to my plasma. The router is upstairs and the plasma is downstairs. With my old G router I got a fairly strong signal. With the AEBS set at N only 5GHz, my MBP won't even see the network. If I move a few feet away it picks it up but transfer speeds were not that impressive compared to being in the same room as the router. If I change to N only 2.4GHz, the range is better but speeds are still not that impressive compared to my old G network. Any thoughts.