I have recently gotten a V959 Quad copter. I have a few issues and need a bit of help. First off I stink at flying it. It seems to track a bit to the left when it takes off. I can only trim the direction to one side. Seems as if the controller isn't working 100%. Also after a crash, very minor as I haven't gotten too far off the ground, I need to pull the battery out to reestablish communication with the copter flying. The lights turn on and off but no propellers. Also when running in 40%, have tried higher values. one prop seems to take a bit more throttle to get up to speed. Any help would be appreciated. I do not want to send this back but will if it is indeed defective. Thanks. Jim