Dixienormas2,   The software system utility(your system has this)) and the chipset drivers know what is attached to the system, like webcams, usb ports, wireless adapters. Usually when the drivers are not installed in order, the adapters don't function corectly.   If the wireless adapter is seeing and connecting near the wireless router, then try reseating the mini card and make sure the antenna wires did not come off. CLICK HERE.     Also start, control panel, device manager, network, 1510 adapter, advanced. Look and see if this adapter has antenna diversity. If it does, try changing it from Auto to Aux and see what happens. This works on many other wireless mini cards.     Rick
I have a dell XT2 that i recently purchased without a hard drive.  I bought a hard drive from ebay and installed it and loaded up windows 7 (32bit).  I got on dells driver list and downloaded all drivers I required for my system.  The device manager only shows the device 5800 missing a driver now)  this system is running the Dell 1510 WLAN mini-half card.  I have seen A TON of topics on this card, but no solution that have fixed my issue.  (I have tried just about anything I could find)   My issue :  At 10 feet or greater away from the wireless router (Vizio XWR100) my laptop will not even pick up a signal (no wireless networks available)  However if I sit the laptop down on the same desk the router sits on BINGO, I am able to connect and serf the web.  (With a POOR 1-2 bar signal)  I am also only getting a connecting at 70-80 Mbps, although I have seen as high as 113Mbps.   If I get up and walk 5 steps its gone and no networks are available again. I can also hook directly into the router with an ethernet cable and serf the net with 0 problems.    I have 2 other laptops, xbox360, ipad, and a droid phone that all pick up the wireless signal with absolutely no problems from clear across the house.  Surely there is a driver issue or a setting issue I have not found.  This is a sweet little system with the exception of the wireless problem.  ANY help would be tremendously appreciated as I am about to pull out the last few strands of hair I have!
Dell XT2 VERY POOR WIRELESS SIGNAL 1510 WLAN MINI - HALF CARD