I have 2 comps on the same network (mine and AAIByteU's) that white screened at the exact same time tonight. We were both downloading the hi-res pack in the background at the time, while flying in the same place. Our systems aren't even remotely similar, so that rules out a number of things on this end. We both manually downloaded the hi-res pack after the issue. I logged in and flew for a bit and had no issues. Hopefully that fixed it. If you're running 1024 textures or higher, I'd try the manual hi-res download. Seemed to fix it on my end.