At least the orange table, and possibly others as well, are rendering their background colour on the cell below. Note that the orange background goes until the middle of the test for the next-lower cell in the enclosing green table. Also, the red table within the orange is leaking down into the top part of the orange table's inter-cell border. (I hope that was clear. If not, let me know and I'll get a screen shot.)

Hey shaver (from cross town). I think this is a duplicate of #6068. jrgm *** This bug has been marked as a duplicate of 6068 ***

Agreed. This a duplicate of 6068.