To assist you a bit further, I would like to know alittle more about how you have it setup. Which cables do you have connected from the DISH Hopper to the Slingbox 500? Are you using an HDMI cable? Do you still have video on the TV that the Hopper is connected to? Are you still able to connect to the Slingbox but get a black screen?
Awaiting your response
Sling Media Moderation Team