Regarding gotomydvr -- the application runs and doesn't crash, however, I can not connect remotely anymore. Tivoweb will run locally but with gotomydvr not working, I can't use it remotely. Also, the caller-id program does not work either under 6.4a, yet it does not crash. Occasionally, under 6.2a caller id would have a long delay before displaying the number if the CPU was busy. But, I couldn't get anything to display at all with 6.4a. It's possible they have speeded up the program or are using higher CPU priority or something. It runs 5 C degrees hotter under 6.4a. The upgrade also took three hours off the recording capacity of the DVR.