Hey there! I recently bought a phantom 2 vision+ and I have had a very hard time achieving GPS lock. I have flown it about 10 times, and every time, I have been forced to take off without GPS signal. It usually says it has 3-5 satellites. Then, once I gain about 100' I usually get a GPS lock for about a minute, and then suddenly it looses it for a few minutes, and from there, it goes in and out of GPS lock. I have tried it in 2 different locations; a large parking lot, and a frozen lake. Every flight has been under 25 degrees F. Any ideas? Its really scary because the second it looses GPS lock, a light breeze will send it flying in any given direction. Would cloud cover or wind make a large difference? Even so, only 4 of those flights were on cloudy days. I appreciate any input!