Full error message:
Connection Interrupted
The connection to the server was reset while the page was loading.
The network link was interrupted while negotiating a connection. Please try again.

I am using zenphoto 1.2.4 with php5-5.2.9

Any solution?
Thank you !

I guess we need to know when exactly this happened.

after installation of zenphoto I tried to upload the first images into a newly reated album with the admin account. This error message came up directly after the attemp uloading one image to the server.

Rgds
Bord

We can only guess. Maybe the picture was quite large and your server choked on processing it?