Oh, well. I just PM'd you a long message with instructions, and I forgot that you have Internet television. I retitled your thread so others don't make that same mistake. It's probably the same process as what you do on a computer - your WEBTV apparatus has a hard drive, and that drive stores old pages you've viewed so you don't have to reload completely every time you look at a page. You should have a "tools" option somewhere on your system of menus, and you need to clear your cache of stored messages.
It's hard for me to work these things out unless I'm on my dad's WEBTV, and I don't know if I'll be going to Florida to visit him until after January 1.
But anyhow, look for a cache, and clear it.
-Joe-