MP1.01 has been working quite well , but last night it failed to go to standby. The event log shows that a request to suspend power was denied by tvservice. The only change I made yesterday was to install IE8.
I am now seeing this error as well. Running MP 1.1 (Final, no SVN), and it was running fine initially, but all of a sudden I am seeing this issue in the last week or so. I don't use EPG grabbing as well.
If I stopped tvservice.exe from the Services control panel applet in Win XP, I can standby and/or hibernate, but my system just wouldn't go to sleep if tvservice.exe is running.
Anyone has any ideas? I will try and attach my log files when I get home later today.