yeah, from the thousands of posts online from what sound like pretty technically competent people struggling with the RX 5000 XT I think you're probably right. I really feel your pain, trying to fix my issues has taken all my free time for the past few weeks and I am honestly just fed up. I wish you the best of luck with the RMA, I think it's completely reasonable. I have never heard of people struggling so much with new hardware. I'm back to working on my trusty laptop with Nvidia card for now