Moving image within window using middle mouse button

[woodscanner]

Afternoon, all,
[Searching the forums this seems to happen to people every so often after an update, but there is no solution I can find...]
About a week ago I stopped being able to move images within a window using the middle mouse button. (I can using the navigation arrows, but they are clunky)
The middle mouse button still scrolls normally for zooming in and out, and for scrolling text.
Using space bar/left click still works as well
Have been using FGU for years , not changed mouse or anything.
Is there a reset or a fix?
Thank you!

[LordEntrails]

Likely its due to a mouse driver update or a reset on your driver. Check your mouse driver settings to make sure middle mouse is set to Middle Mouse and not something else.
But no, nothing has changed in terms of mouse controls in FG for years.

If that doesn't resolve it, we will need to know your operating system, what ruleset and if you have tried in a new campaign with no extensions.