title: NSS: client certificate not found (nickname not specified)
body: <p>Working with the Paypal API, yes i've checked my config files, yes i've checked username and password.... i'm outa ideas.  I'm using the ExpressCheckout API downloaded from  and everytime i try call the setExpressCheckout method i get the following error:</p>
  
  <p>NSS: client certificate not found (nickname not specified)</p>
  
  <p>I know it's something to do with an SSL error, how do i go about solving the problem?</p>