Imgeupload to mysql beyond 1 kb fails

Hi Images under 1 kb uploads and shows fine. Images larger than this is inserted into database, with correct file size, but does not show when calling a php file get_image.php as a image. Below is from my database, the image with id 33 does not show, the image with id 34 do show. When having the larger image, it only shows a broken link, not the image. I can´t see any reason for this ?? Endre Slett 33 [BLOB] hydra.gif 4023 image/gif Endre Slett 34 [BLOB] hjerte.gif 597 image/gif Regards Are Haugsdal