dschlapman: The problem is that when I enlarge the screen to play it goes truly full screen, and you must hit escape to reduce it, to use chat box or anything
Use the F11 key to maximize the screen, chat isn't affected. The Windows key (next to ALT) brings up the Quick Launch bar without changing the full screen for access to background applications.
Odd quirk on using F11 with Comodo Dragon-you have to hit it right away when you open a window. If you miss you have to minimize the screen, maximize it and hit F11 again.