I'm having this problem at one site, set up on a subdomain, here:
http://purrz.com/boni/photos/
This site is hosted by SurpassHosting.com, a cPanel type web hosting service.
But at another of my sites, hosted at TextDrive, I've got huge honking images and they are just fine all across the board.
http://jonimueller.com/photos/
Oh, but what else is weird is that I have another client whose site I host at the SurpassHosting.com site, where I'm having a problem, and his are just fine. And in fact, it's the SAME PHOTOS, because it's a sample album.
http://maccercat.com/zenphoto/
So could it be a subdomain issue, since the web host (and presumably the server settings) are the same for both sites, one working and one non-working (albeit in a subdomain)?
And sign me up as a tester, too. I'm quite taken with zenPhoto and its small footprint and try to employ it and recommend it whenever I can.
Thanks for any assistance.