Hello all hoping someone can help me. I recently purchased my father a 436. We tried to plug it into his windows computer and it will not recognize it. I was able to program it for him off my laptop but for him to regular updates from uniden I am trying to get it on his computer. When I plug it in on my laptop it recognizes it but that maybe cause I have the sentinel software on there already. When I got my 436 all I had to do was plug it in and it downloaded the sentinel. His wont do that. Any suggestions on what I am doing wrong ? Anybody else had similar trouble. Sorry if this is simple fix but im an amateur. Thanks