WOW!! Dan, that is a GREAT piece of investigative work, I NEVER noticed that stain, or the circle area from where the oval picture used to be. From that photo, looks like some jerk may have thrown a cola drink or even maybe coffee at the wall. By the time the cleaning crew tried to clean it up, the stain had already set in. The stain looks too large to be caused by a heating vent, unless you know for a FACT that is what caused that stain. But that would have to take decades to cause that discoloration, wouldn't it?

Well, I applied my wallpaper onto a 63 inch long piece of corrigated white plastic (23 inches high) and placed it behind the couch in my van, almost three weeks ago. I had sprayed the back of the wallpaper with 3M spray glue, which I have used for just about everything in the past, and when I woke up this morning, HALF of the wallpaper had let loose from the blasted plastic!!!! I'm going to take the paper off of the plastic, carefully, and try to sand the plastic surface with 800 wet and dry, and see if that will make it "Vulcanize" any better! (and NO, I'm not going to ask SPOCK about that!) Hg

William (the Bloody)