^^ Don't you mean:
Code:
if ($userlastvisit<$forum['lastpost']) {
$forum['onoff']='on';
$forum[title] = "<font color=\"{newpostscolor}\"><i>$forum[title]</i></font>";
} else {
$forum['onoff']='off';
}
}
a.) Why include code to confirm the name of the forum title if it isn't changing?

b.) You forgot a closing [high]>[/high] in the first part of the [high]<font>[/high] tag

c.) You forgot to parse the code correctly
[high]Edit:[/high] Nice hack Karsten

Satan