What is happening when this occurs? Can you give us the steps you are taking so we can try and reproduce the problem? In addition, could you type "about:flash" in your browser's address bar and copy/paste the results in your reply?
Well, I'm just browsing along when this window pops on and says"Flash player has encountered a problem and has to close." Then it gives some details and a "send error report" and "Dont send" buttons. I'll try to remember to copy down the details on the window next time it happens.