[Dx4win] Website Callsign Lookup

[n4dsp]

In File/Preferences/Ext.Data/Website callsign lookup/Callsign lookup address 
, I have the address as http://www.qrz.com/. The Enabled box is checked but 
whenever I enter a callsign in the qso window and press enter I get this 
message;

"QSL Contact information Not Found
We're sorry but we do not have the QSL information for: N4DSP"

I am not sure why I keep this message with any call I type into the qso 
where I should be getting all qsl information. Anyone have a clue?

john-n4dsp