link-image overlap in Safari

In WP 1.5.1.3:
Trying a link page with only images (under construction, no descriptions yet).

Edited the get_links into:
<?php get_links('-1', '', ' ', ' ', 'TRUE', 'rand', 'TRUE'); ?>, you can see the result here.

Tested on Mac in FF (nothing wrong), IEmac (nothing wrong) and…
In Safari the images stick to eachother or overlap. With refresh it changes, but images are never ordened correctly…

Any idea what to re-code to prevent this?