[Plugin: MaxButtons: CSS3 Button Generator for WordPress] Button in table not working

Hi

I created several buttons and place them in a table (using WP-table reloaded).
The first button on the left (serie 1000) is working, but not the others (1 série 1600 B). Linking each time to the same page (série 1000). I try modifying permalink structure, and many tests.
The behaviour seems different from a computer to an other computer.
Of course I switched off all extensions, but still the same.
Please can you a look,
Thanks!

http://www.raccords-gautier.com/tableau-des-raccords/

http://wordpress.org/extend/plugins/maxbuttons/