issues with clouds "Alternating cloud renders onXP64-32"

[sitnisati]

Hello,

This bug might be related to cirrus clouds pixelization under 64 bit only.
Pixelization bug was fixed today and probably differences between 32 and 64 bit,
which I have to test.
If you maybe have a very simple scene and images to post here, so I can compare
with the beta version I have here.

Thank you.

Kresimir