At turn on I get "ERR DVR". Any push button makes it go away and the only problem is the DVR isn't working , nor is it "installed". The DVR was factory installed and worked for about 6 mo. I have installed the op system from the k3 web site twice with no "Fix". I'm out of things to try, any suggestions from the reflector bunch?? Dennis W7JX K3 # 3901