I am newbie of Drupal. Now I am constructing my site with Drupal7 under following condition.
Apache version : 1.3.39(unix)
PHP version :5.2.14
When I upload jpeg image with image field, Jpeg thumbnail is not displayed.
But GIF and PNG thumbnail is displayed without any problem.
I found that when I upload GIF or PNG, thumbnail data is generated in
But in the case of jpeg, thumbnail data is not generated.
Because of this problem I can not show jpeg thumbnail in my site at all.
Could you kindly advice me some solution. Thank you in advance.