White Line on Screen

[ewells]

Hello, 

I just received my CM3 from Retro Modding and on the first few boots everything was fine. I started adding roms and trying games out and after a couple of hours playing with it, a vertical white line appeared in the center of the screen. I tried a fresh install of the image from the Freeplaytech Setup page and the line is still there. Here's an image of how it looks...

   

Any ideas?

Thanks.