There was a direct view 32XBR-450 that I was going to purchase and I asked the store workers to set it up for me so I could try it out in-store before I bought it. They did this at closing one night and I went in the next day to try it out and found it had been on for several hours (7 or so) at the horrible factory setting with high contrast. Could this have caused any damage to the phosphors? I don't believe there was ever any static images or text on the screen so that's not an issue. What would be some of the noticeable effects if there was any damage? How long does it usually take for high contrast levels to show any effects on the picture, or is it just the life of the tube that is effected by high contrast levels? As you can see I don't know much about this issue. Any help would be appreciated. Please let me know if this is an actual concern I should have or if I'm totally off base. Thanks a lot.