Issue with Last Row in Table

[BabyBoomerBooster]

I am creating a small address book in Word 2008 for Mac. I have two identical tables one above the other. In two of the columns of the table I have two lines in each cell such as:

Street Address
City, State, Zipcode

This works in all of the rows except the last one. When I type the second line in a cell in the bottom row of the table the first line disappears and it only allows one line. This happens with both tables so I don't think the problem is that one is above the other.

What do I need to do so I can type two lines in a cell in the last row of the table?


Thank you,
Mary