For some reason, starting this morning after some windows updates, I don't have a working atmosphere in the preview??? Veeery strange.
I've tried new docs and old projects and atmosphere (against BG sphere) only shows in couple pock marks.
Also, the Note shader has some graphical issues as well. Because of this I was worried about my GPU so I debugged dx and my drivers and everything seems fine, even benchmarks. This all just popped up after of course a Windows Update.