Here's an odd one - I set up my new slingbox hd pro without problem a week ago, worked fine, got it set up on my cellphone (WinMo 6.5, Omnia 2). I think there was some kind of software update (?) - now, just my cell phone works, and NOT ON ANY OF THE PCs I HAVE TRIED... huh..... I tried it on both firefox and explorer - any thoughts?
I would recommend, to discard a firewall setting affecting the connection from the Slingbox.