Tim, let AMD know about the issue. They might get with the issue faster then LM can. They would be the one that could create a good driver for this sim.I did pick it up. At the moment, v5 has serious problems with the AMD 5xxx series graphics cards, and LM aren't yet on top of it. Surprisingly, they don't have a rig with this graphics card in their studio (according to a reply from them on their forum), so it may be a while before this is sorted out. A shame, as it looks like a worthwhile improvement.