As a matter of interest I have discovered the registry key that will hide the UAC security nag message that displays in the system tray when UAC is disabled. If your interested let me know and I'll post the key here tonight.
I can't find the reg key at the moment as not at home, but came across the URL below recently. I am not on a Vista machine at the moment so cant try it but this implies you can do it straight out of the Vista Security Center.
Yes it does stop the pop up warning occuring. I have had so many other problems with setting up another media center that I haven't let you know how it worked, sorry. Thank you for your help.
I wolud also like to know if / how you get both tuners working on this card.
I have 2 of these cards but I can only get MP to use 1 tuner on each.
All 4 tuners are detected in configuration and setup (within MP) shows 2 x dual tuner cards but sitll only lets me record 2 things at the same time before giving me the 'can not complete graph error'.