iMessage on Mountain Lion does not send/recieve file transfers?
As the title says, iMessage on my MacBook Pro Retina with Mountain Lion will not accept file transfers nor will it send files. I currently have the same iMessage accounts set up on my iPhone and Mac so what's been happening is I'm talking to someone on the computer's iMessage and the whole conversation syncs back and forth with my iPhone, however when someone sends me a file, only the phone recieves it and NOT the computer.
What I've done to fix this so far:
-reinstall mountain lion, didn't fix it
-reinstall iOS on my iPhone, didnt fix it
-add and remove all iMessage accounts on both devices, didn't fix it
What do you guys recommend I do?
MacBook (13-inch Late 2006), OS X Mountain Lion