I got hit by this one tonight ….
I tonight opened a multi diagram Visio file I have been working on for a few months and strangely I couldn’t get any of the shapes to move. I could resize them and edit text but the shapes would not move … it was like they were glued in place.
I can’t explain it but a machine reboot fixed the problem. Visio version is 2010.
A few other people have had the same issue … with pretty much the same resolution ..
This might help a few others