After using Magicjack for one year it just quit working. When it is plugged into my computer, it shuts it down. It will not let the computer load up unless it is removed. I have contacted the online chat people and they don't have a clue of how to fix it. They keep telling me to plug it in and when I do I loose contact with them. I just renewed my license for another year and now I can't use it. It worked just fine for the first year and then nothing. read full review »