'97 - Heater won't turn off

I have seen the other posts about the heater not coming on but mine won't turn off! I can turn it to cool and it's still hot air. It even comes out when it's off, but it's not blowing like when it's on. But it's really hot and you have to roll the windows down just to breathe! :P Hope someone can help, and if you do could you maybe tell me exactly where it is you are talking about, don't know very much about auto work.

Thanks,
Cruz

open your glovebox all the way and make sure that your vacuum lines are working the doors. The doors in your vent could be stuck or a leak in your lines. it is on the fall side, but can only see throught the glovebox