BleepingComputer.com: Vista and Outlook prompt for password

I have Vista Ultimate installed on my newish computer. I also have Outlook as part of Office Pro and use it for e-mail. Every time I attempt to download e-mail a dialogue box pops us prompting me for my password. I have clicked “save my password”, entered the password under “E-Mail Accounts User Information”, signed on using the password and nothing seems to stop this popup from appearing. Each time it appears the server stops downloading the e-mail and I must restart. What am I missing here? I’m the only one using this system, so the use of a password is somewhat overkill, but I can’t seem to eliminate this step and cannot seem to get the password to automatically send.

The other issue, also related to security is that whenever I attempt to alter a file, a setting, or any other object, the system prompts that I do not have permission to complete that action. I am logged in as “administrator” and, as above, I am the only one who has access to this system. I’ve reentered the admin setup info multiple times but this does not resolve the problem. At the moment I cannot delete files, cannot change file names, cannot move files from the HD to an external, cannot update ap files such as Photoshop and cannot open OS files.

If anyone can explain what I am doing wrong and how to resolve these irritating issues, I’ll be very grateful! Thank you

System Specs:
Dell XPS 6301
Pentium ® Core 2 Duo
4 GB RAM
Vista Premium
Office Pro