Yes, I reset it numerous times, latest Firmware, tried everything.
The point is, the picture did not change at all on the camera's backscreen, when setting at different WB settings, never-mind even getting it onto the computer. I shoot only in RAW so, to change it in Lightroom is easy enough. Problem is in JPEG where the problem persists (should I ever want to use JPEG, or sell the camera to someone who does...) I like things to be right, so, if it costs a bit, then so be it. I'd rather have it working correctly.
The only WB changes that were noticeable were when setting "White Balance Correction" to the extreme.
Anyway, I have sent it in to Canon and will hear from then soon, I hope.
Thanks for your concern, I will keep you informed.