Handcent Question

I installed handcent and really really like it but how do I stop the default messaging app from popping up with alerts for new texts. It keeps popping up on the top bar whenever I get a text from anyone even after accessing that text in Handcent. It's not that big a deal but I need to go into my messaging app and view it to get rid of that notification. Is there a way to stop the notifications for the messaging app? Thank you.

 

thanks, i've been here for a while but got the moto devour when my contract went up, hated it and turned it back in for a blackberry tour, had it til a little bit ago, was happy with it but it didn't do anything so I bought a a855 Droid on ebay, brand new for like $180 with tons of extras, love it and am getting used to/learning the Android OS.

I appreciate the help, thank you.