[support] Unable To Access Admin Area After Move

I have a 5.x site using CiviCRM that was developed under a subdomain (i.e. dev.example.com), and we took it live, so it is now at www.example.com. Everything seems to be fine other than the fact that I am unable to access the Admin area. When I try in FF, I get "www.example.com has sent an incorrect or unexpected message: Error Code: -12263", and in Internet Exploder I get the standard "This page cannot be displayed." I can log in and get to other parts of the site just fine. I searched for that error, and it appears to be specific to SSL. I'm using SSL on this site (for CiviCRM and Ubercart), but I shouldn't be using it just to get into the Drupal Admin area, should I?

Thanks.

Steve