The issue I had with my GW1000, with the gain reset to 0.01 , only happened on one of the 3 I have at the house. Do I have I an explanation , Nope. Do I have anything to help the OP, not really. But since I have seen the changed setting, I'm not going to discount him or his efforts, as I can't explain mine. It is possible , some variable, something, prevented the change, we can only guess. i did use WSView + to fix mine. But, quite sure we can't assume his settings or whatever are the same as everyone's, and vice versa. As they become more complex, yeah, stuff like this can happen, without it being operator error (I know i love to use operator error).