Hi Billi,
Might seem like a funny question, but have the struts been extended all the way? The helical focuser of these scopes has a very short travel distance, and the correct relocation of the struts is critical. This would be my first place to look for problem solving.
What it is not is extraneous light coming from the surroundings. You would not be seeing the doughnut shape you described if it were.
The secondary placement inertia describes won't affect focusing. It will have an affect on the efficiency of the maximum amount of light getting into the eyepiece. The scope will still come to focus even with the secondary mirror out of optimal position. Having the secondary best placed you can examine once we get you focusing your scope.
Allan asked if the image you see gets smaller or bigger as you rotate the focuser. If it doesn't, check that you've tightened the set screw that secures the eyepiece in the focuser. Sometimes it is easy to forget to tighten it then when we twist the eyepiece to focus (instead of the drawtube), nothing happens with focus, and we are left wondering what's happening,
. This happened to me lastnight with one scope of mine that also has a helical focuser!!!
Keep us informed with progress.
Mental.