NIS 2009 and Tivo

Just installed NIS 2009 after removing McAfee Security Suite. I cannot download movies from my Tivo to my PC. Worked fine before the switch. Tivo seems to connect but then stops when it starts to load list of programs to download and then error message appears. Tivo is recognized in Ntwork area in NIS and set to Trust. Any help would be appreciated.

 

Thanks