since zenphoto is my new hobby and I love working with it, I am actually playing around trying to recreate your problem... havent gotten too indepth but I had to work last night and I am going to the Pistons game tonight.. I wont get a chance to look into it further until tomorrow.
You never specified weather or not you re-downloaded zenphoto and reuploaded your index.php and the zen directory and re entered the information in the config.php?
In the mean time, what type of server is this..
IIS/Apache
mod-rewrite?
I'll let you know what I find..
Apache on Linux w/ mod_rewrite but turned off in zp
Well since we can't recreate this and it seems to be an isolated problem, the best way for you to fix it is probably to turn on Output Buffering in PHP if you can.... it would fix the problem entirely.
With me, using Apache, PHP4 with Output Buffering turned [i]off[/i] (the only way this problem can possibly appear), mod_rewrite off, etc etc. everything works perfectly.
And Daniel, since you say "zenphoto is my new hobby", want to help us out and become a dev? ;-)
I appreciate the offer however I am not close to being good enough to work on this. I am still teaching myself php, and while I am getting better, I still have a ways to go. I am working on writing my own template functions, which I have a few, maybe ill take a look at some of the stuff in the bug tracker and see what I can do, hopefully submit a few and help you out.
and yeah.. back on topic... I will also see still what I can find.. however I am not really feeling up to it now cause my Pistons lost tonight:-(