1st photo displayed twice

[GerbenEllerie]

Hi, I've got a very basic setup of the slideshow script running, a simple 5 picture repeating loop.
For some reason the first picture is displayed twice, with the standard fade effect it appears as the first picture beeing projected 2x the time of the other pictures. When i select a slide effect, it just slides in two times in a row.

Any thoughts? I am not too experienced with this stuff, so bear with me..

greetz.. Gerben.