OK… now I see what you are saying and have corrected it. I am a bit confused though because the 300×300 was for the medium size images and I had large already set to 840×480. Either way, I changed the medium size to the 840×480 also and the slider image is looking great now.
Sorry for the frustration, but this one was confusing since the image size was correct and wasn’t displaying correctly.
Thank you very much! This matter can now be closed. Thanks!