Since I installed Vista 64 SP1 I have a problem that my scheduled recordings
stop after a few minutes and the pc goes back to sleep (S3).
In the event log I see a browser warning showing up at the same time:

[message]
The browser has forced an election on network\Device\NET
BT_Tcpip-{F899cc1b-4166-4D42-9859-10238359 F6D9}because a master browser has
stopped.
[/message]

It may be a coincidence, but there must be something happening.
Any ideas?