Its seems that they combined 2 pairs of beams by a PBS. This means that when the PBS has shifted the second pair of beams that is entering the PBS on the side is not perfectly in allignment anymore.
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Or they are using a knife edge and PBS arrangement. Up close, you will see the separate beams.
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You are using Bonetti's defense against me, ah?
I thought it fitting, considering the rocky terrain.
I thought my issue might have been blanking too, but after I made some adjustments in the software, it was clearly not the case. I think the key was seeing 'ghosts' on scanned images.
Manlie, the pictures of your red dot seem normal, but I can't tell if it's just washed in the pics. However, from what I remember my red looked like a single (wide) dot on the dichros, it didn't look like two distinct beams like in your pic. I didn't inspect it closely in the near or far field, but red really seams to be the cleanest for dots and shapes on my projector.