or know how to fix it for that matter

I find this too. Doesnt seem to matter which browser as it happens in all, a refresh will usually cure the problem. Good Luck :)

happens usually because you joined a tournament and because of this the next countdown wont show.

fix it by refreshing like TLp said

actually gurgi, i couldn't join a tourney if i couldn't see the join button for one, there for, i couldn't have joined a tourney, to not see the join tourney button.

also, i tried refreshing many, many times, still didn't work. However last night it randomly decided to start working again. I was just sitting playing, and all of a sudden the join button popped up like nothing was ever broke to begin with.
All is good...
For now.