TYPO3 Core

I made a new typo3 installation without dam, but the problem still exists.

Here are some additional information:
- imagemagick is installed and works (thumbnails are created when files has been uploaded with the element browser)
- I can delete the files in typo3temp/pics and clear the cache, the thumbnails are recreated except the thumbs of the images I uploaded with the 'browse' dialog
- the links to the enlarged (original) images (in uploads/pics) are ok
- the website is running on IIS 5.0

I don't see the difference between direct upload and the selection of images in the element browser. In both cases the tt_content table does contain only the filename.
=> same places of original files, same entry in tt_content, but there has to be any difference in saving or linking those files, otherwise there should be no difference in creation of thumbnails

Maybe someone can give me a hint how thumbs are created in typo3.

I just tried that with current trunk and it works correctly for me. I see the thumbnail in the BE next to the image name.
These thumbnails are not saved, but generated on the fly.
They are created using typo3/thumbs.php like typo3/thumbs.php?&dummy=1288885492&file=..%2Fuploads%2Fpics%2Ftest.jpg&md5sum=110d1e0d0c