I just converted over to Vista Ult on my older rig, very nice!!
One of the tweaks I am still sorting out is the Guide Download Time hack.
In MCE05 I could use either
1.
GuideTime - under Vista it needs framework 1.1.4322 installed, I haven't gone down this path yet, trying not to install extra software if not needed. This used to be the most reliable tool and didn't need a reboot.
2.
EPG Change Down Load Time - seems to work initially under Vista but the registry changes don't seem to stick...even with a reboot
What is everyone using or do you just leave it be. I have checked the event logs and my VMC seems to download every time it wakes from sleep resetting any registry changes. I would prefer the old down load 1800 each day to prevent unecessary waking a night.
Later,
Nudge