Yeah! That got rid of the error, but brings up another question. So, when the domain was using custom settings and they also changed the weights; when you revert back to using the default settings shouldn't the weights revert back to the default values too? (Because in my case they are not reverting back to the defaults set in the System Admin section.)
I know that if changes are made for other things, they would not automatically propagate; but it would seem that the SPAM values should. I mean isn't that what "Use Default Settings" implies?
And regarding uploading an image, that picture button does not have that functionality. I can upload the file on my server and post a link to it to be viewed here, but I can't upload a file from my computer directly. And frankly, having to a. take a screen shot, b. having to upload it to the server then c. determine the url and finally click on your little picture icon and paste in the URL is--well a PITA.