Cattleya with crepey (crepe paper like) texture on leaves

[curt.rmqb]

Hi guys, and gals. My name is Curt, and I am a new member here, I've read many of the threads, but this is the first time I've posted. I have been growing orchids for about a year, I have about 20 phals, about 30 Cattleyas, and a couple dendrobiums. For a novice I've been very, I don't know if you'd call it beginners luck, or maybe I've just been a good student doing lots of research, but I've had great success. But now I've run into something I'm not familiar with, I'm hoping some of you can help me. I've noticed recently that a few of my Cattleyas have developed a crepe paper like texture to their leaves, and I'm at a complete loss. I've found no reference to this. I don't know what it is, or how to correct? Please help.