Windlight Clouds are Gone

I'm currently running with a Radeon x800, which is on the recommended list.

While having either Atmospheric or Basic Shaders selected in the Graphics tab (not both), my environment looks alright, but no clouds appear. I have checked Environment Editor, and the Cloud Cover tab is higher than 0, but I can only slide it inside the Advanced Sky tab. When I do select both shaders, the sky is sectioned off into 6 colors, the clouds appear but are pure black, and all prims/avatars are blobs of white/black. The ground is the only thing that stays the same.

Anybody else facing this problem, and how should I fix it?

Thanks!

I use an X600, and don't have that problem-could it be your drivers? I'm actually not using the most current ones. There was also some kind of problem with Anti-Aliasing a while back that would turn stuff black, although on my comp, it's working now with AA enabled.

Wow, I changed anti-alias to Disabled and turned on Anisotropic Filtering. Then everything went black. I changed back to 4x, relogged, and its fixed

Thanks so much! SL looks great now