Riddle Me This

How come people can upload a huge photo (4mb) as a background for their profile, and it shows a thumb for it just fine and uploads great, and with RAY you can upload huge files for music and video, but we can't figure out WHY profile and gallery photos cant be big. Can anyone answer this? Why do photos that are bigger have a hard time on profile and gallery? Why wont Dolphin create a thumb and icon photo for it? But yet profile customization works fine with large photos. Is it possible to get the same type of system with uploading a background image for profile and gallery photos? Is there a mod that can automatically re-size photos and save them to free up space IE someone uploads a 4mb photo and it automatically re-sizes to 500kb? I know people say they just tell people to resize etc. So please don't say that. I am looking at WHY is it only in that one aspect that has problems.

Ok. If I turn off "Process image with GD" in advanced settings, it works just great. I can upload a 5mb photo and it shows up and creates an "icon" and "thumb" for it.

I checked my server, and it still changes the file from 5mb to 150kb and lower for the thumb and icon.

When I delete it from the site, it also deletes it from the server.

So, I am good to go now.