I have a TiVO Premier XL which has been working OK since I got it. I just got a new Windows 7 PC. After converting a video on the PC, TiVO desktop is set to automatically transfer it to the TiVO. With my old XP system, this worked well. With the new Win 7 system, whenever a program is transferring, I notice a very slight jerkiness while watching a Tivo-recorded program. Everything works fine and the jerkiness is very slight, but is noticeable. Any suggestions?