http://bugs.winehq.org/show_bug.cgi?id=18235
--- Comment #7 from Rein Klazes wijn@online.nl 2009-05-02 02:09:41 --- On Windows XP I see exactly the same picture. Table extending a bit beyond the right margin.
That is why I thought the bug happened when you created the table.
Another thing might be paper size, File->DocumentProperties->PrintSetup is here A4. Changing to letter gives table aligning on the right marging perfectly, both on windows and wine.
Perhaps you can look at the paper size under wine.