My Polar's screen is messed up, what do I need to replace? [pics included]

[djdizzy]

I sold my Virus TI Snow and replaced it with a Virus TI Polar that I bought used from a store around a year ago, it's screen was messed up when I bought it. It was marked down enough to where I just thought I'd get it repaired when I can afford it, besides I was already used to using the TI software for everything except the 3 mapped knobs... due to previously owning a Snow.

I quickly started to enjoy using the knobs more than the software but the messed up screen is a real bummer. What do I need to replace to make it right? The first picture below was taken when the Polar was powered off, you can see where the screen is messed up. Then the 2nd picture is with the Polar powered on, the 3rd picture is the Polar powered on and the lights turned off so it's more noticeable. What confuses me is that the problem area is visible even when it's powered off.