For example, I draw a box. I select and duplicate it and align it with the first one. I do this maybe four more times. Now I have a row of boxes all aligned.

I then increase magnification and the end box is no longer aligned so I shift it a couple of pixels and all is aligned again. I then go back to my previous magnification and lo! It is off by a few pixels again.

Why is this? Why is it that sometimes an object will not stay aligned?

Thanks - Lawrence