@kemonine I remember doing a bunch of experimenting when the camera was new & settled on some best-for-most-cases settings. White balance is only available in some modes - it usually does a decent job on that, but I think it must have just detected the wrong type of light in this case.
Thanks for the tip on turning digital zoom off completely. I don't use it very much, but figured it wouldn't hurt to have available for when I do. Maybe it is?
@kemonine I guess I should do a new round of experiments with this camera & see what I can convince it to do!