I'm using a TiVo as a STB along with a Colossus. They have worked fine together for some time. I recently had to reinstall Win 8.1 along with all of my other programs and now cannot get the channel to change in MP. I have set TV3 Blaster to change the TiVo's channels via TCP using PacketSender to issue the commands (I was unable to get the internal TV3 Blaster TCP utility to work). It changes channels fine in configuration's test. It also changes channels perfectly if I start MP, turn on TV, and issue the commands manually using PacketSender. I've looked through all of the posts I could find about not being able to change channels and none of the solutions worked. I have restarted the service and rebooted the PC many times. When looking at the logs, it seems to be running PacketSender, but there are no signs that it is actually doing that. Any help is greatly appreciated.