you need to add auctiva.com to your allowed list on popup blocker.
the method of doing this will vary depending on which popup blocker is involved.
one of us can walk you through it if you tell us which popup blocker it is.
If it's IE's Pop-up blocker:
to add activa.com to allowed list, it's Tools / Pop-up Blocker / Pop-up Blocker Settings
then type in *.auctiva.com and click "Add"
(Note: be sure to put the *. in front of auctiva.com, as shown)