Images don't display in the product page and in the catalog thunbnail.

Hi,

I have a problem with drupal 7 and ubercart 3.

Images don't display in the product page and in the catalog thunbnail.

Time ago I installed Drupal with Drupal commerce but images don't display. Then I tried with ubercart but now I have the same problem. I think it is something related with drupal and not only the type of e-commerce CMS used because in both cases i cannot display images.

I've already tried to change .htaccess rewriteengine off
I've already tried to control that the preset uc_thumbnail and uc_category are present in the image module and that the image module is active.

Please help. Thanks.

Fanaval