Just to let whoever is interested know: for whatever reason, it was stuff about the column that effected this formatting problem.
<td valign="top" height="215" width="147">
The column was defined with a width of 147, which the script didn't like. It output weird formatting of the text in Netscape on a mac.
Eventually, I figured out a solution, weird as it may be - was to change the width attribute by a few numbers, and it worked. I had tried this also on another page, and the wisth of 147 was the problem. Perhaps the numbers didn't add up... I donno. It's a weird thing, but it is now solved, by using:
<td valign="top" height="215" width="150">
That in combination with removing a <nobr> in line 226 of last10.php fixed it.