Weird Prince of Persia problem

Got a weird one. I rented Prince of Persia for PS2 and when i try to play it, the analog light goes off on my controller and wont come back on. When this happens I lose control of the game as it starts constantly scrolling through menus and I cannot stop it. If i manage to get into the game, the character runs into a corner and continues to run endlessly.

Any ideas? Its not my controller because it works fine on all my other games (I have double checked) and I do not have second controller to plug in.

NM - figured it out. For some reason when my DVD Controller port is plugged in it does this. I removed the Controller port and it worked fine =)