Here's the original case. All of the cells have images that fill to their given widths except the ones marked "Empty".

		Empty
		Empty

If we fill either empty out with text, the problem goes away.

		Empty - lots of text here now - and more and more and more text in it
		Empty

		Empty
		Empty - this has lots and lots and lots of text in it

Taking away either the cellpadding=0 or cellspacing=0 fixes the problem.

		Empty
		Empty

As does removing the explicit width on the table...

		Empty
		Empty