UAC won't come into play unless you try to install something on the user's computer. Regular websites are sandboxed inside IE and are very restricted from what they can do.

>If I am the only one having this issue, and this IE action has to negotiate with the UAC or the account itself, the timeframe when it started would match the timeframe when I started to have all kind of problems about the c:\Users directory being bounced off to the virtual disk D: drive. As IE might have to write under that root on such action, that might explain a lot of things.
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>I still haven't had the time to recreate a new account and bounce all my settings from that user to the new one. Once I do that, I will also check this item to see if it resolves itself also.
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>However, I only got once confirmation so far. So, I will collect more data from other users to see if they are ok as well on that simulation. I am trying to collect the information on the scope of the situation. Thanks for having run the test scenario.