"I upgraded my Samsung Galaxy S3 to Jelly Bean this morning and now my phone keeps flashing a red border. I run a photo wall live background and my pictures randomly flash too."
This is an issue that many of the S3 owners had or have at this moment!
The solution we've found is next:
Go to Settings then Developer options
and here take care to un-check next two things: Strict mode and Show screen updates!!
After all of this restart your phone!