This sounds like a mouse problem.
What version of InDesign? OS? Mouse?
Thanks for the quick response!
I'm using the trackpad (which is fine as far as I'm aware!?) on macbook - OS Yosemite
Indesign CC 2015.2
My memory is that some other users had similar problems with ID and the trackpad. Does turning down the sensitivity work?
It's working! I turned down the sensitivity, then put it back up and it is now working!? Thank you