I;m having the same issues with my frame tv that i bought last July. I purchased the tv because of its art functionality, but to say I am disappointed with its actual operation is a gross understatement. My slideshow stopped working around november last year. I'll try your recommendations above, but I think I already have everything registered. you may want to try https://www.curveexpert.net/products/matmaker/ or this http://regex.info/blog/photo-tech/mat-builder for making your own mats, although I agree that is is unacceptable that Samsung wont take the time to do this themselves.
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