Thumbnail preset field is required.

You need to create an imagecache preset first: this preset will then be used to build the actual thumbnail from the original picture. I definitely need to write a new README.txt file to guide people through the install process.

I would need a few things to be sure I can reproduce your bug:

- The default settings (admin/settings/teaserthumbnail)
- The content type settings for the node type you want to have this feature (admin/content/node-type/YOUR_CONTENT_TYPE). There is a section called "Teaser Thumbnail" where all the settings are (you should actually make sure you have the "Generate thumbnail" option set to "Enabled")
- The content (HTML) of the node you are submitting

I have exactly the same problem - I can get the full sized image in my teaser block and no image at all in my page of teasers.

I also can't seem to find any way of inserting teaser thumbnails in views. mind you I am new to views 2

if it would be useful I can give you full access to my site if you pm me to work out whats going on and add the details to this post

Thanks to some help form the developer IU got there in the end.

I backtracked through the required modules and realized that imagecache itself wasn't working correctly. A quick tweak or two and everything is fine now