This should work,
Topx are displayed if one if the "counters" is enabled!
its in the config.php like this:
$show_topx=($show_comments || $show_image_rating || $enable_download_counter || $show_count_views);
if you disable the other ones too you won't get the topx.
Because it down not make sense to show the topx without anyting to show!
if you disable comments the topx is still shown if one of the others is still on!
and of yourse is latest comments then not vidible if you turn comments off.
Just retested this - should work
/Michael