[Meela]

Maybe because he made it, it didn't affect him in the same way as everyone else, ie. it didn't turn him invisible. Perhaps he was too powerful to need to be invisible, as though the invisibility thing is only to shield you from your enemies so they can't hurt you. Sauron couldn't be hurt, and didn't need to hide.<BR>Perhaps he had more power and control over the ring because he made it and therefore he could choose either to be invisible or visible. Perhaps when someone was invisible it was how Sauron saw they had the ring, and so Frodo, Isildur, etc. turned invisible because it was a way of tracking them. Sauron wasn't tracking himself, obviously, so he didn't turn invisible.<BR>Just a few suggestions. I don't have an exact answer or anything.