I uploaded my first map and then made a duplicate. then I deleted the original map and the window froze. Now I constantly have a "missing plugin" error whenever I try to use the single or multi-player tabs... I logout and back in and reloaded the pages but no effect. Does anyone know why this happened or how to fix it?
Thanks for any help. :)

Actually, it seems to be an problem with my browser as its showing up all over the place. I will try to fix it. I'd delete my post but don't know how yet :)