Had a bad night out last night with new computer and basically could not get images plus to work with my camera (no live view) and PHD couldn't see my guide camera. Anyways, I get home and PI won't process my images, saying that there was a geometry issue, without telling me what that was or what it meant. I thought maybe the stars didn't align or something like that. Anyways, I tried to look at the images with blink and got a little more detail about the geometry. I shoot a D7000 and that is all that I have been shooting with previously. Did the new computer with Windows 8 do something to my already bad images?