So, I tried to reinstall the stock AT&T GS3 ROM as I had never particularly liked CyanogenMod. I thought this would be a great time to reinstall the stock ROM. I factory reset the phone and flashed the stock ROM (which I downloaded from another thread) using Odin. It automatically rebooted, the Samsung logo flashed for a second and the CyanogenMod bootloader showed up and it has not gone away since. So, what have I done wrong here and is there a way to save my phone? Any help would be greatly appreciated.