I suspect that your Florida computer hasn't given the external disk the necessary user rights. I run my home computer with UAC turned off all the time (on Vista Ultimate), anyway, but when I visited my dad in Florida, I took an external USB drive to upgrade some of his software. I remember having some rights issues (where it couldn't write to the drive and it couldn't access some folders that I knew were there). I just gave that computer's username full rights to the folder and all worked well. I suspect it might be because I created everything on the external drive under my computer computer's username.

So, when you turn UAC off or run as administrator, you then have full rights. My guess is that the program is trying to write a configuration file or some such, but can't because of rights.

Just a thought.

John

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