The flash player is buffering and more

I use Firefox also and the Flash player keeps cutting out when I'm playing games on POGO. A drop-down window keeps popping up and tells me the flash website is trying to load and is running slow. Do you want to 'stop it',or 'wait', or I can click the x to exit. When I hit wait or exit the message comes right back. If I 'stop it' the screen goes black and says Flash player has stopped running. I have to close Firefox to get the POGO home page to reload.

I uninstalled and reinstalled but no help. I can't locate Flash... in my program files or the add/remove page either. Not sure how to make this stop and find out if the Flash player downloaded right or being blocked.

I need help and I look forward to your reply.