Those (at the bottom)?:
http://hol.abime.net/3317/boxscan
By zoom I suppose you mean x2.
I don't have any issue seeing them be it x1 or x2, either as a simple visitor or when logged in as supercontributor.
Can you try again, doing a hard refresh on your browser (Ctrl + F5).
If that still does not work can you post your browser version (and if possible try with another)?
If anyone has the same issue please report and give details if you can.