Okay, let me first say that the game and WGT.com are not connected. If you log out of the game, it should not log you out of WGT.com and vice versa.
There is a cookie value for the WGT game in your computers registry. The easiest way to reset that cookie is to remove the WGT registry key completely. You can do that by following the instructions for removing it here.
It doesn't do any harm to remove this WGT key Lonnie, as when the game is relaunched it just replaces it. I'm not guaranteeing a cure, but you never know, it might just work.
Removed post as it was irrelevant.