Hey,

sorry for my bad english.
I hope u understand my Problem.

I've installed Zenphoto on my server. After that I was in the Adminpanel and changed nothing.
A few days later I want to change some things, but I cant login.

If I write the name and the password an klick on the Loginbutton, the leadingbar do something a second and then I'm on the loginscreen again.
When I write a wrong username oder password I get a Message, taht something is wrong.
But if it is right nothin happans.

What can I do?

Thank U!

Teroa

Please read here (this is covered a lot on the forum as well)
http://www.zenphoto.org/2009/03/troubleshooting-zenphoto/#16

If you have installed using any installation helper script please install manually.

I've installed it with the zp-core/setup.exe
Untill now I hadn't any idea to fix the problem.

I'm now in phpMyAdmin. I want to edit the option there.
But if I change anything, for example: zp-options -> id 23: images_per_page from 15 to 18, nothing happens. Is this a bug or is this not allowed?

First, you should not be changing the database directly. There are administrative functions pages for that. So far as the images_per_page, please do a search of the troubleshooting guide on this as it has come up multitudes of times.