Vista - Windows mail in conflict with User Account Controls

After choosing to reformat my hard drive and do a clean reinstall of Vista,
I've run into some strange problems with Vista security that I wasn't having
before.

One problem I am having since the reinstall is with Windows Mail . Since I
didn't want to lose my email accounts, contacts, email folders, and saved
email, and I hadn't exported any of this, I did a restore from a backup set
(with NovaBackup), and had it overwrite all current files in the Windows Mail
directory. I expected this to work, but I started getting error messages
when I tried running Mail with UAC on, saying that Mail couldn't run. If I
shut off UAC, then Mail would work OK. Also, if UAC is on, I can do a "run
as administrator" on Mail, and then it will work. How can I get Windows Mail
back to running normally without losing everything that's in it?

Thanks for your help.

--
Larry S