Imagecache preset is missing in field configuration I have all the modules that could have to do with imagecache enabled. 
It's the user: picture field that I want to use an imagecache preset on. Normally if you want to configure that field in views, there should be a drop-down list at the very bottom of the configuration form right under the 'link to user's its profile'-checkbox. 

I remember I had it there but now it's gone and I can't find out why.
Do you have the ImageCache Profiles) module installed and enabled? Here is a quote about it (from the module's project page):


  ... allows you to set user profile pictures that are consistent throughout your site and allows avatars on the user profile pages, nodes and comments to be a different size.