Word 2003.
I'm doing long and complex documents with all the information organized in
tables.

I've noticed that my tables randomly become flat so that I can't size them
with my cursor. Sometimes I can size width only - I never need to size width,
so this doesn't help me. Other times I can't size the file in any direction.

Print Preview doesn't work, and neither does Table Properties.

The first time I noticed this was when I split a column into three or four
cells. It was to the left of a column that was NOT split. I could no longer
lower or raise the cell height. Typically a split column is fine, but that
was the first place I noticed it. Then it occurred more and more often
throughout the document, affecting regular non-split cells as well.

I have to create new cells ALL THE TIME and cut/paste the content into them,
then delete the flat cells. I've tried copy/pasting the entire document into
a new document in case it had gotten corrupt - no good. It's really annoying.
Does anyone have any suggestions on how to avoid this?