I hosted a game off of this computer for 2 days. I shut the server down and closed the game so that i could reboot my computer. When i tried to dedicate the game again, all it did was make the "U" icn down i the bottom right corner of "Winblows" and then it up and disappeared. I have no reason why the he| | this happened, please advise on what to do, it's getting on my nerves.