I have recently experienced this problem which is driving me nuts.
I am running windows 7 32 bit . Some buttons (profile,friends,sit down,etc) are not working on all browsers( i used ff,chrome,opera,seamonkey) on this game(zynga poker) and i cant hear any sounds in tis game only.
I tried uninstalling and re-installing flash player but of no use. The flash settings are also default. I can get sounds on flash videos but cant get it work in this game..for some odd reason it used to work only in chrome till yesterday and now its not even working on chrome..I have searched some solutions but didnt help....
Any assistance would be greatly appreciated.
Could you try the steps outlined in this FAQ to see if they help?
I'd also recommend stopping by the Zynga forums to see if anyone else has encountered this issue.