I talked to someone tonight and they told me to cancel the check and rewrite another one. I first checked my bank account to see if the check was listed as a bouced check and all that...it wasn't even listed. But I remember getting a NSF charge in the mail from my bank. So this is a really good thing. I cancelled the check tonight so everything's ok.
Whew! And I was wondering where the heck I'd get all that money...I just have that money plus I'll only have to pay a little extra to my landlord. No biggie...I have it. This time I'm not gonna write a check...I'm sending a money order to her.
Thanks for all your replies.