Split from this thread.
Out of nowhere, WORD will decide to dramatically increase the page margins. All of the page margins look correct (and seem to print correctly), but they are wildly problematic on the screen view (almost 20" wide). I've had this happen to me twice now. When it happens, it effects all documents currently opened. So it's not like it just changes one document, it will change any documents that are opened. The only fix I've found thus far is to close WORD, reopen it (to get a document based on the normal template), then open the problematic files, and copy and paste the material into the new file, and then "save as" over the former file. The first time this happened I figured it was a fluke, now that I've had this happen to me twice, I'm thinking something worse is going on here.
Here's a pic of what it looks like on my screen when this happens. I purposefully opened the Page Setup in this screen capture along with the page layout view to show that everything appears perfectly normal.
Jason