When I use my TWAIN scanner from within Photoshop, it launches a non-modal dialog (or frame, I'm not sure) with the scan options.
I just minimized this window because it was in the way, but I cannot restore (unminimize) it. It doesn't have a task bar button or a system tray icon, and it doesn't show up in Alt+Tab.
I know it's not closed because when I go to the TWAIN menu option in photoshop, it's still grayed-out. I've made several adjustments in the scanner dialog that I don't know out of my head and I don't want to lose either.
I've also tried the un-minimize shortcut Win+Shift+M, but that only seems to work after a Win+D or Win+M command.