Casio G'zOne Brigade

Has anyone else with the Brigade had any issues with the phone restarting at random when you're just sending a txt msg or something else? Just wondering... VZN said that they couldn't find any of these issues... but has anyone else experienced them? Just wondering. Thanks. I just got the phone Saturday and every day it's been shutting off... I am debating on whether to return it period, getting a new phone, or a replacement... Please help!