Table trouble

Just wondering if this is a common thing that happens to others and what they do about it. I set a table to what ever scale, then I enter text and the table expands even w/no-wrap checked. I’ve looked at other sites and notice that the put a spacer gif with a table w/3 columns and put the spacer’s on the side columns, so I thought I would give that a try, but it still expands. I’ve set the width and height, but it keeps expanding. And when it didn’t expand I keeped adding text then it started to expand after a certain point of text added. Closed it down and reopened it again and still the same problem.