dude i run Vista Ultimate In BootCamp, And Home Basic In Parallels and i get that "Cancel Or Allow" stuffz all the time,
like when i install a program, i have to click allow like 5 times, and then some other warnings... come up as well...
BTW. u guys don't have to click the button in the taskbar, just use "Command (as the Win Key) Tab"
I just installed Vista Ultimate about 4 days ago. Installed Office 2K3, Radeon drivers, Nero 6.6, 7zip, ultimateVNC, Google Earth, CutePDF, Winamp, Flac, FLV Player, Picasa, Photoshop 6, DVD Shrink, Virtualdub, Acrobat reader 8 and Quicktime Alternative....
I didnt get any excessive warnings. I got one popup asking me to allow. *IF* the program was not 100% compatible with vista such as Nero 6, it would prompt a warning saying there were compatability issues - do you want to continue. If an older application failed install, vista would ask if you want to retry with alternate system settings that might be compatible with the installer and you'd say yes and it would run the installer for you again. So aside from the first "are you sure you want to allow..." when you run an installer, the others are just warnings for things that may not be vista compatible. Those are things I'd want to see 100% of the time.
So not sure what you went through that was different than mine but there was nothing I found to be illogical. Once install is all done and system is running, there is no more UAC issues anyway so everyone whining about UAC is just grasping at straws. Its just a non issue. So you deal with a few popups during the setup of a computer - life does not end.
Now I'm running this on a Core 2 Duo PC and I'm running the 64bit version and I've got 4gig RAM and I will say the system is more responsive than when I had XP. I'm impressed so far.