flash/login issues

I cant login to my account on my stationary computer. It says I dont have the latest flash installed. I thought that was weird because i logged in from the stationary puter the day before. Nevertheless, I installed the latest flash. I STILL cant login, get the same error. No flash installed.
Help?
I use Mozilla Firefox.

clarification:
With login i mean when i try to enter the game with clicking Play Now. Also. I can apparently get into the game with my IE... weird. while my laptop has no issues with Firefox.

i think other people have had troubles using firefox before... you could try clearing your cache and see if that helps ... also check your settings... if nothing you do helps send a ticket to support