Hi Joe.
That about the position of the cursor in the cell dictates which direction the multiple cells get generated confirms (to me) what I've said about a short cut keyboard malfunction, bit like dragging a selection.
I wish you could switch them all off and maybe just choose which ones you want to use. I use word a lot and in my new to me 2007 version I often get editing boxes open for no apparant reason. Another of these damn keyboard shortcuts that make your work harder
as you have to keep stopping to get rid of them.
I think the programmers should have a good think on if what they design is actually needed and not if it's a good gimmick or they feel clever having invented it, does it actually HELP you use the program.