[ubuntu] Adobe Flash Player Setting kills the page

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http://ubuntuforums.org – Greetings. I have got Ubuntu 12.04 on an EeePC netbook. All works fine. However, I want to make a web conference, as a speaker on meetcheap.com. To set it up, it popps up the Adobe Flash Player Setting's little window... and then it is blocked. I cannot make any clicking. I spoke with their Support, and they tested it, and said, it was a system problem, with my Ubuntu. Please, help. How may I make my mic work? Btw, I can well participate on webconferences there... as a listener. I hear well, and I can ask questions well via the chat function. However, no talking. And (Hardware)