Yes, your phone must be rooted, and although I was anxious about rooting my phone (I've never done it before), the process is EXTREMELY simple if you follow the guide on the site galaxys3root (I'm a new user and can't post links yet, otherwise I'd be able to give you exact links to the places I'm talking about). There's a page there with a video that is a fail-proof/noob-proof way to root your phone. After that, it's a simple thing to be able to fix the copy/paste issue. There are also instructions on that site for how to unroot your phone if you want to do so (but idk why you would unless returning it for warranty reasons). It's better than doing a factory reset and then probably having to do it again a little while later if the same issue happens. MAKE SURE TO NOT FOLLOW THE INSTRUCTIONS FOR THE INTERNATIONAL VERSION IF YOU HAVE A U.S. VERSION AND VICE VERSA.