Thank you for contacting Slingbox Forum. I am sorry you are having problems with viewing the Slingbox.
We are advising to watch the Slingbox at slingbox.com at Watch. Here are a couple of links that may help you determine what is compatible and what systems and browsers will work with your Classic and PRO units. They are:
Hope this helps with your issue!
Have a great day!
Sling Moderation Team