I just received my Latitude D530 laptop with the Dell 1505 802.11n (Draft) miniport card.  I set my wireless network up and got connected right away.  However with in a few minutes my connection speed dropped from 130mbs to 52 then 30, then to 26, then to 15, then to 5.5...eventually settling at 2mbs.  If I reboot the system the connection speed returns to 130mbs for a few minutes and then starts to drop.  It takes about 5-10 minutes to drop to 2mbs, but it stays there.  I tried to update the driver with no effect.  I originally  set this computer up on my Netgear wireless G router. all of the other computers run just fine but the Latitude kept dropping its speed down to a crawl.  I purchased the Netgear WNR834B N router and the speed still dropped off.  Signal strength is excellent.  I would appreciate any help.

Thanks,

Ross