I am using firmware 1.0.1.63 which is the latest stable release (I have been up on it for several months). 1.0.3.10 is available in beta and I will probably switch to that this weekend. I know others have had GS problems, but I have been using it without issues for the last 18+ months. If i recall the problem voipo was having was totally resolved by circa 1.0.1.41 although even earlier releases increased stability.