Installer closes when "Play Game" is clicked

Ive installed WoW with no problems at all. It installed and opened the installer menu with the readme and support options. I click the top play game option and then it dissapears and does nothing. I uninstalled norton. downloaded that flameware.net or whatever. Getting mad. PLEASE HELP

If you are still having

If you are still having problems you might want to uninstall and reinstall, or maybe you have a downloader/patch running in the background and it's minimizing it?