User Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:13.0a1) Gecko/20120205 Firefox/13.0a1 Build ID: 20120205031129 Steps to reproduce: Please note: This only occurs with Nightly. I do not have this issue with FireFox. Visited Pogo.com Started playing Spider Solitaire. Actual results: game opens as usual, 30 second ad plays, then an error message quickly flashes in the panel, then blank yellow screen. Expected results: Java based game should have started.