Hiya,
On images larger than about 1mb the thumbnails aren't being created, but for images under 1mb the thumbnails create fine. It is the same whether I do it manually in the acp or if I set it to automatically create the thumbnails when the image is uploaded. When trying to create the thumbnail in the auto-thumbnailer in the acp it just says 'Create thumbnail for: image name', and nothing happens, when auto-create thumbnail is on and someone tries to upload a large image they get a page cannot be found error and the image isn't uploaded. But images under 1mb the image and thumbnail is created fine. I'm using GD. When I manually create a thumbnail with an outside program for images over 1mb and upload it via ftp, the thumbnail shows up fine so I'm assuming its something to do with GD.
safe_mode is off
max_execution_time is 30
upload_max_filesize is 8M
Any ideas please?