Give the gift of Drupal. All merchandise is 50% off through 2016.
This is a problem I get only on IIS and not on apache with version
Content Construction Kit (CCK) 6.x-2.0-rc6
If I change the Imagefield module back to the older version version ImageField 6.x-3.0-alpha1 there is no problem anymore, and everything works fine.
The directories have the right permissions. it also happens with userid 1.