Hi Janet:
From your earlier thread, it sounds exactly as if the account entry screen is loading but isn't visible. As Andrew suggested, it may be placed off the screen somewhere, though in that case the [Alt][Spacebar] technique should work. Unfortunately there are some things that can't be diagnosed on a forum and I think that's why there were no further answers on your previous thread. I suggest a call to your Adagio consultant who would be able to get your screen back, likely quite quickly.