I registered just so I can tell you this koopa; you can in fact return or even get a refund at any local radioshack with this phone (even if you purchased online) so long as you have the original packing slip and print off your confirmation email radioshack sent (the latter is not required if exchanging). I too was having issues with the phone I received from RS and exchanged it, the replacement was even worse than the one shipped to me from the warehouse so I just got a refund. I will be waiting until mid week next week to purchase a new one. Seems like there is a bad batch out there and either you get a keeper or get a dud. Probably a low quality check on these phones to get them out. Whatever you choose, good luck and enjoy the phone because when it does work correctly, it is fantastic!
Note: Make sure you TELL THEM you want an exchange otherwise they will try to bullcrap you into upgrading the PRL and factory reset a.k.a. the easy crap that doesn't do anything because the phone is obviously defective. They might give you some attitude but that is why I will never be doing business with Radioshack again