Help! I Can't Post Comments!

HELP! I need somebody!
HELP! Not just anybody!
HELP! You know I need someone,Help!

...Ok enough with the singing! (can you guess where the lyrics are from?)

Anyway for some reason I have been unable to post comments because the box that pops ups won't let to the part where is says "post" any tried changing the size and everything!
Here's what I mean:

So um...Please Help.

Thank you all.