Screen doing funny things when texting
 

I don't know what to call it, but when I do mark as read or reply, among other things, the screen does this weird thing. Anyone else? What is it and what makes it do this? My Mogul never did this. Sometimes, it will show the background if I'm in landscape mode and I have to exit out of messaging and then go back in to clear the screen. Thanks in advance.

http://i188.photobucket.com/albums/z...s/DSC03810.jpg