You can set a percentage width for all cells in the table.
Click in one of the table cells, then click on the Table Cell Properties button.
In the
Width field, type in 50% (or whatever percentage value you require for each cell)
Select
Update all cells in table from the list in the dialog footer.
Click
Update.
Ryan Demmer
Lead Developer / CEO / CTO
Just because you're not paranoid doesn't mean everybody isn't out to get you.