Weez is right, Dutch. Yours are yellow. not white. And yours almost looks like heat damage, or spraying the leaves and lowering the lights, (steamed leaves) or stabbing the roots with a stake. (perhaps a bamboo one, lol). Did you at some point accidentally brush the plant against the hot bulb?
Hi Rusty

1. It looked snow white in person...and like I said earlier..it progressed very slowly over a 3 week period...during 2-5 week, 12/12 flowering cycle.
The fan leaves were still green, on their undersides & and white/shriveled on top?

2, The temps at ground level & light level, never went over 83 degrees...and I don't spray leaves.

3. I do use a moisture probe to check for the next watering. I've used one since '05.

4. I had them elevated (on a box) too close to the light; I am almost sure of that?...probably about 15 inches away. I did a have a small fan blowing between the plants and the light. One poster (at ICMag) thought it was 'wind burn'. I don't remember anybody reporting that before. They never came closer than 15 inches from the light. I switched to an HPS bulb; thinking it MIGHT be UVb related?..but, the situation never improved and got progressively worse.

5. I drives me nuts, not knowing for sure...:wtf:...cause...I'm starting again..:smokin:...week #3 veg...film at eleven...:jointsmile: