Msn game problems

I looked on the net and got no answer 2 my problems.
So everytime i try 2 select a game 2 play with my friends it tells me I need windows live messenger 2 play the game (even though i;m on it already)
If a friend sends me a game invite it accepts and it loads until the game screen where it says that there is no ActivateX or something like that.
I tried the whole internet security thing where you enable all the field for ActivateX and none work
All the games worked until I un-installed messenger(because it wouldn't let me sign in) and re-installed the newest version