WORKAROUND FOUND: Thanks, donnena. You were right about it being a "lost" dialogue box. I searched for that term, and after reading a bunch of stuff, figured out this workaround, but it might not work for everyone.

1. In Win10, I clicked on the "Poser" icon which is pinned to my taskbar.
2. There was a list of recent documents there.
3. I picked a recent document and then Poser responded by asking if I wanted to save the current file.
4. I responded "Yes."
5. The current file saved and then the older file opened.
6. At that point, the program was "unfrozen."

I have now gone back to my original document and everything is working fine.

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NOTE TO PEOPLE WHO DON'T HAVE POSER PINNED TO THE TASKBAR: Try going to your file browser and select an old file manually. Maybe that will give you the same response that I had, and let you get back to your work again.

Thanks to all for reading.

Mike

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System: Lenovo Legion Pro 7 16IRX9H Laptop | Windows 11 Professional | 32GB RAM |  14th Gen Intel® Core™ i9-14900HX | Nvidia RTX 4090 Laptop GPU 16GB 9728 CUDA Cores
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