Excel grid lines show when pasting, didn't used to

[RindaRich]

Since running the most recent update the grid lines from Excel are showing
when pasting into Word and PowerPoint. I do a paste special - enhanced
picture. Same as always, just working differently. I've seen on other sites
that other people have had same issue, but have not seen a solution (other
than turning off grid lines which is not desirable). Anyone have suggestsion?

 

[K B]

I would love to know what is causing this.. as well as how to get it to stop.
I used to paste-special-enhanced picture for work related documents. Having
gridlines visible detracts from this method.