TI 83 Plus, screen F**ed up

Well. I just tryed playing this blackjack game I downloaded, and tried playing it, it didnt work, and now everything on my calculator screen is set downwards about three or four lines, I attatched a screenshot of the calc. Is there any way to fix this? Please help!

http://img456.imageshack.us/img456/7096/screen019ye.png

Edit, I noticed that this is just the home screen. No matter how many times I turn it on and off, the home screen always has a black line through it, and my cursor appears right below it, not at the top like usual. I dont know what happened. :[

Alright, I fixed it, no worries. I just opened up a certain type of program, I guess resetting the home screen, fixing it.