The weirdest thing happened at my end. The "bad" document was one that I had been editing on another machine, in WinXP and Word 2007, then brought over to my laptop which is Win8 and Word 2013. When I received a new document and opened it exclusively
on my laptop the problem seemed to clear up.
However.
I just did the update to Win8.1 and am about halfway into the document I'm editing (a novel, about 66K words) and the lag is starting to take effect again. Has anyone else noticed problems with Office after updating Windows to 8.1?
Thanks! I will be contacting Microsoft Support via Twitter (I find the Microsoft site itself to be virtually un-navigable) and sending them a link to this conversation. Maybe then someone will actually, you know, FIX THE PROBLEM so that we don't have to
go rooting around in the background to try and slap together a solution.