After working in Adobe Photoshop 2020 for years, I decided to switch to a newer model, and upgraded to 2025. I know now that plenty of study will be required to familiarize myself with PS 2025, but knowledge of the Old Ways has got me somewhere, at least. What I can't get past is the "Hand " tool. If I do something that the app considers "wrong", I am left with only that one tool showing up onscreen. Nothing else is usable, and even the Hand tool is useless, beyond moving the application frame around on the monitor. So the only recourse I have is to save the file, close Photoshop, and try to figure out what I did wrong that brought everything to a halt. Any ideas?