Hello again...
Well, I'd rather suppose that's xoops fault, but I'' give it a try here :)
I noticed that xoops either tinyd ignore table formating, for instance <table width=50%> gets ignored, same with <th width=20>.
Those are only examples.
Well, things change while I open a printer friendly page, there "puff" everything is ok.
My question is, where to look? Or maybe I'm supposed to RTFM of xoops ? ;)
It is an issue of themes.
Check css files of your themes.
You can override them by writing like this: