I just installed the 1.13 version. I went from 40fps to 8 (on XP11.5 beta , beta 3 I think). Set the XE to simple and unchecked full cloud cover and selected real wx. I'm running three monitors off 1050i card. The weather reported scattered and broken layers and I got none of that. The #1 monitor showed a pretty good haze but the #2 and #3 monitor showed CAVUOK. Not using vulcan, will be after I upgrade to 2070i card.