I don't know how much, but the 131xe does have H&V image shifting.
Look in the "display" menu.
See page 42 of the manual: http://www.optomausa.com/webresources/files/support/2265_HD131Xe_UM.pdf
Here a few crappy Iphone shots of the focus issue I thought I did not have. It's not noticeable at all when watching videos so I am not going to return it for this. Could be that I'm out of plumb too. I am ceiling mounted so my issue is on the left side.
Bottom corner is out of focus when top is in focus
Top is out of focus when bottom is in focus
I've finally set my screen up for this projector but the image from top to bottom is too big, the only problem is if I zoom out to make it fit from top to bottom then the side to side image is too short and I have over an inch of white screen showing on both sides.
Am I right in thinking this is wrong? I'm sure the image is supposed to fill the entire white area of the screen.
This is the screen I have if it matters:
It's 16:9 I would have though all 16:9 screens would be the same dimensions.