I just changed out the color wheel on my set, unit powers on and wheel spins however when watching programming I am now getting a shadow over half the screen that has an awkward shape to it. Its not the shadow problem that I have read about people having where a few inches on the left of the screen or top are blackened. This almost seems to look as if something was partially obstructing the lens. I took the tv apart again and made sure nothing was blocking the lens such as that foam that it fits through. I found nothing, does anyone have any ideas? Thanks in advance.