I've had a problem with Real Band in which the program seems to freeze... but when I press CTRL>ALT>DEL to get out of it, for a brief second before the program shuts down I see an open dialog box which for some reason remains in the background, but apparently with focus (which is why the screen I can see doesn't respond to mouse clicks or key strokes... focus is on the modal dialog box.)

For whatever reason, I can't ALT>TAB to the dialog box, and I can't minimize the foreground window if it is maximized.

However, I CAN drag the window out of the way to dispatch the dialog box IF the main window is sized but not maximized.

I must be initializing the dialog box somehow by clicking around exploring the new menus. It has happened about 3 times for reasons I don't understand yet.

But I mention this so you can try sizing your RealBand window... then if it freezes again, drag the foreground window out of the way to see if something underneath is waiting for input.

https://www.dropbox.com/sh/ey71h8ep047758h/AAC12jNM0Hz9Q8zsh5iDeqNHa?dl=0