I contacted Support and they directed me to download the Slingbox Player for Desktop (windows). The Desktop program works much better than the browser-based setup. Everything is working now. I hope this helps others.
BTW: I love my Slingboxes. I was one of the first 500 people to buy a Slingbox back in 2005. My only complaint is that the newer products do not have an over-the-air tuner. I hope they change this in future products.
Link to legacy Sling Player: - http://support.slingbox.com/sitecore/content/Support/OldDownloads?sc_lang=en-US