easy fix - dump vista and google chrome - problem solved
Yeah vista has alot of unnecessary built in crap.
have you still got the user controls switched on ?
Go to control panel, switch to classic layout (left hand side to switch)
select user control and chage settings to Do Not Use User Access Controls.
Becase that's the thing that asks you dumb 'are you sure' questions each time you try and do anything.
This could well be a uac issue.