uploading problems

i try to upload a 3.63mb image at 1080p from cycles and whenever it finishes uploading to blender artists a message comes up saying that image upload has failed. Should i render it out in a different image format? is anybody else getting the same problem?
png image
blender 2.66


Your file size is too big for an image. Try jpg

Use this site. You don’t even need an account to upload files.