HTTP error 0 occurred
After just spending most of the day on this and this being one of the most frustrating issues i've come across with Drupal I thought i'd write a list of fixes for this Filefield AHAH 'HTTP error 0 occured' as it may help someone else. There are lots of suggestions on Drupal.org but it takes a lot of searching to go through them all.
My setup is running Drupal 6.22 with the Seven admin theme, PHP 5.3.5, Apache running on CentOS. The image and file modules i'm using are: ImageAPI 6.x-1.10, Filefield 6.x-3.10,ImageField 6.x-3.10, Filefield Paths 6.x-1.4.More on HTTP error 0 occurred