I have the latest version (not beta) of ESET Smart Security. When I installed it, I couldn't watch cable TV anymore with Windows 7 Media Center. The cable tuner is assigned an IP address, and uses a cable card from Cox Cable so I'm not sure where the blocking is occuring. I added the tuner's IP address to the trusted zones, however it still prohibits me from watching premium channels. If I power cycle the digital cable tuner, it then works fine but after a reboot it is back to Windows not seeing any device to watch cable TV. I uninstalled ESET and everything works fine, even after reboots without power cycling the ATI cable tuner.