Would suggest you to follow the below steps :
1. go to Lightroom Preferences> Performance> uncheck "use graphics processor"
2. Preferences> Presets> uncheck "apply auto tone adjustments"
3. Relaunch Lightroom.
4. Import a fresh set of images and check if the preview loads fine.
Thank you for the quick response. The "Use Graphics Processor" is on. Under it it says, "Graphics processor acceleration has been disabled due to errors?
If I do turn it off, when you say"import a fresh set of images" do you mean the same images? I would have to turn off "Don't import suspected duplicates", correct? Than I would have to redevelop the images?
After turning graphics processor off, you can try to import another images (not the same) just for the test purposes.
If that works well, then you will have to upgrade your Lightroom 5 Catalog to version 6 again.
OK, but just to clarify, The only time I notice this "ghosting" is after I have "developed" the image. It has never happened on just imported images. Also, it doesn't happen every time I open the image nor does it happen to every image, maybe one or two out of ten. If I turn the graphics processor off, do I turn it back on again later or do I not need it? If not will I get the full benefit of Lightroom without it?
Thanks for the update.
In that scenario, I would suggest you to try working on your images in Develop module.
I believe the color issue was due to the incompatibility of your graphics card with Lightroom 6.
It would be better for you to not to turn on that option as it says "disabled due to errors" and yes, you will get the complete benefits if this will remain turned off.
I do only work on the images in the Develop module. I have turned the graphics processor off and restarted Lightroom. I will let you know if the problem persists.