Certain games on Yahoo and other game sites won't let me join the table (cards usually), I can get in the room fine and it shows me sitting at a table but I can't see or play the game. I get a message about the game coming up in a pop-up window and that I need to change settings or something like that...I have Mozilla Firefox as my browser. I have gone to security, settings, control panel but don't have a clue what to be looking for. Also, I don't want to be foolish and disengage the pop-up blocker entirely and have to endure millions of inane ads and pop-ups...I just want to be able to play cards again! Please help, much appreciated!