Drupal doesn't save an image when creating a new node.

Hi,

I have a content type, called "Story" which has one (unlimited) field called "Image".
When I am creating a node (right after I hit "Save" button), I get duplicate entry error message:

User warning: Duplicate entry '15166-0' for key 'PRIMARY' query: INSERT INTO content_field_image (vid, nid, delta, field_image_fid, field_image_list, field_image_data) VALUES (15166, 8898, 0, 32571, 1, 'a:3:{s:11:\"description\";s:0:\"\";s:3:\"alt\";s:0:\"\";s:5:\"title\";s:0:\"\";}') in _db_query() (line 147 of /var/www/.../includes/database.mysqli.inc).

1. CCK Version 6.x-2.9
2. 6.x-3.10
3. Permissions for TMP directory is "drwxrwxrwt".
4. Download method - Public
5. Filed configuration:
- Label: Image
- Widget type: Image
- Permitted upload file extensions: png, gif, jpg, jpeg
- Maximum resolution for Images: 0
- Minimum resolution for Images: 0
- Progress indicator: Bar with progress meter
- Number of values: Unlimited
- List field: Disabled
- Description field: Enabled
- In addition: Image Javascript Crop module enabled (http://drupal.org/project/imagecrop) version 6.x-1.2.

6. Expected results: image has been uploaded and image field doesn't remains empty after saving a node.

7. Image field remains empty after clicking "Save" button (Creating a new node).

8. - Create a simple content type, e.g Story
- Add image field to it.
- Add dummy text to node title, node content.
- Add image file
- Hit "Save".

Thanks,

Any help will be appreciated.