Need Help!

[shan^K]

OK for some reason this just started happening today. I will be playing in a server and everything is fine, than all of a sudden the buy menu won't pop up, I won't be able to type in chat box. If I hit my buy binds nothing happens, I can't drop weapons or pick them up. Wondering if anyone knows how to fix this, it just started happening to today out of the blue and I don't know why :crying:

 

[Skattles]

I know this is the Tech help section but it might be better to post this in the CS:S Section of the forums if that is even the game your speaking of??