I've always only used actual nVidia drivers, but your comment prompted me to make sure I was updated to the latest version to see if that would make a difference. No luck, upon install and startup of SR5, Poser Pro 11 immediately crashed. Once again I've rolled back to 11.0.1.31230, and everything seems fine once more.

Granted, I'm running a relatively low level graphics card (GeForce 550Ti), but I don't think I should be having these problems.

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Hardware: AMD Ryzen 9 3900X/MSI MAG570 Tomahawk X570/Zotac Geforce GTX 1650 Super 4GB/32GB OLOy RAM

Software: Windows 10 Professional/Poser Pro 11/Photoshop/Postworkshop 3