#1994 (ok 2.8.0-beta2) print css results in blank table output

[Rene Kanters]

On my Mac OS X with Safari (and some other browsers) I see a proper
'print view' of tables and such, but when I go to print them out, the pages
have empty tables in them. Actually the text is there, but it is in white (as
I found out from copying and pasting the 'Save as' PDF file).

I found that if I add
color: #000000;
to the table enetry in the theme_print.css.php files in the themes
directories, I could get them to properly print.