Joowls on "Email verification link"

Hi,

I'm new to ZenPhoto and must say I'm loving using.

I've installed 1.4.6 and I have a problem with the email verification. I can register a user no problem, the email gets sent no problem, but when I click on the verification link I get:-

"Zenphoto Error: the requested object was not found" Page: register?verify=613a323a7b733a343a2275736572223b733a32303a226a2e726f64646973406669........."

Any help, hints or tips would be greatfully received.

Joowls