Solid Horizontal Lines on Optoma DS303

For the past couple of weeks, I've been having solid, coloured horizontal lines displayed from my projector. This occurs whether I have an input cable inserted to the projector or not. I've also tried different power outlets in case it was an interference issue, although the lines aren't scrolling, so I don't think that's the case anyway. The lines appear immediately upon starting the projector although the intensity of the lines varies. I've tried reseating the bulb assembly, but no changes to the projection. Here is a picture of the issue:
http://imageshack.us/photo/my-images/197/optoma.jpg/
Any suggestions?

No warranty.