Fatal Error after uploading more than 100 pictures

Hi,

I changed a little bit of this module's code. First, in modules/image_fupload/image_fupload_imagefield/image_fupload_imagefield.module, line 92, I changed this
$upload_limit_count = 100; // unlimited
to this:
$upload_limit_count = 10000; // unlimited

Then, I changed in modules/image_fupload/swfupload-settings.tpl.php, line 21:
file_queue_limit : "0",
to this:
file_queue_limit : "10000",

So, now, I can upload up to 10000 pictures
I tested this, and it's working. But, when I upload a gallery of arround 500pictures, and when I want to modify this gallery, it isn't working, I get a fatal error, which is linked to a memory limit..

Is anyone know something about that ? Because, I can view the gallery, but I can't modify.

Thanks
(And sorry for my bad English, I'm a French drupal's user)