Went to the Apple Store today. When I described my screen issues and that I had read that it might be a flash issue, the guy said he was aware of it and it was not uncommon. In disk utility he checked the hard drive and it said it was corrupted, so he repaired it. He said that the latest snow leopard update was supposed to address this, so he ran software update, and he further stated that Adobe had come out with an update so he went to their site and updated flash.
Thus far, no problems but then again it hadn't happened in the last day or 2 so we'll see. Hopefully it was that easy but we'll see.