Thank you very much Brian!
I saw you have used AOO 4.1.1 (from pdf properties), but I suppose it's the same on the (definitively?) last 4.1.2.
In any case I will open a bug with your files attached too, classifying it "Inherited From OOo", and I will post back here the associated number and link.
I think I will also open a bug with respect to the "T" cell border little overrun because one line that orthogonally meets another one slightly trespassing it over without blending and exactly ending in it. This other bug will also appear to be classified "Inherited From OOo", always comparing your and my files.
Have a nice Sunday evening,
Carlo