Q: how to get rid of circling rainbows

Because this condition can have so many causes, few would bother to spend time on the diagnosis, and I admit I am one of those as well, but after 13 hours since you posted with no response, there is a troubleshooting checklist for the spinning ball, circling rainbow, below;

http://www.thexlab.com/faqs/sbbod.html

p.s your rainbow image is far more beaultiful than 'SBBoD'