I continue to get emails from individuals having trouble viewing the archived UStream recordings. This is the fix that worked for me:
1. Install the Mozilla Firefox web broswer: FireFox.
2. Install the AdBlock Plus for Firefox add-on: AdBlock Plus.
3. Install the Ad Block Plus "Easy List" filters: Easy List
4. Enjoy ad-free UStream broadcasts & recordings!
If you STILL have problems after trying that, then it is most likely your version of Adobe Flash Player. The latest release has been very problematic. To download a previous version of Flash Player, go to http://kb2.adobe.com/cps/142/tn_14266.html and download version 10.2.159.1.
If NONE of those suggestions fix the problem, then you should contact the UStream Helpers at http://www.ustream.tv/help, because I am out of ideas.
I prefer to use Google Chrome for most of my web browsing, but I have Firefox installed on my computer now. I plan to use it for all my UStream-related activities. I have been using Firefox with AdBlock Plus for a few weeks now and I have not had one single problem since I first installed it.
If you've been having problems watching UStream broadcasts and recordings, be sure to give this fix a try. It worked great for me!