I just bought a new D-Link wireless b router (DI-514) and a portable reciever (DWL-122) for my desktop.
I hate it! It's constantly dying and has no range! It sits 7 feet away from the desktop. I have to move it 5 feet from the computer at times just to keep it working. Today it wouldn't connect at all, even less than 5 mm away from the reciever. If you put it in the pressboard TV unit, it dies (same distance).
I would advise anyone against buying these models of D-Link. They suck.
You can't run the D-Link software on the wireless PC and Wireless Zero Configuration at the same time without problems. Disable Wireless Zero Configuration in Windows XP and only use the D-Link software.