Multiplayer Help!

[LoSeH]

I dont really think this is a bug, probly just from my side, but I really cant figure out how to fix this.

So I went and tried to play some MP games for the first time. I got into a game, we loaded the song, and when the arrows started scrolling I couldn't hit any, like if my keyboard stopped responding, I could still type in chat tho. I play with AutoHotkey so I thought that might be it, I disabled it and tried playing with the usual arrows but still no luck.

I just cant think of why this is happening, I can still play single player games fine, I rebooted my comp, and now Im out of ideas.

Anybody heard about a similar problem or had the same happen? Help would be greatly appreciated.

Thanks