ok, thanks, that eventually did it. I was dreading that half hour phone call on Monday morning. I opened a new account and just logged on to make sure it was open, and then immediately logged out. There was a screen that already had mosaic checked, and I never could get back there. They have some new name for "classic" it's now called "advanced order system." Still not sure how I got back to classic. But there it is. thanks
If it happens again, you could also load an older settings file from the previous day (file, load setting)
story of someone that got caught in mosaic mode, and was found dead at the keyboard 3 weeks later. you got away easy.