NadaSurf,

Its an easy fix bro...In Windows Control Panel, select USER ACCOUNTS, click on CHANGE AN ACCOUNT, click on the account you use to log into your computer, and then on the left click on the little link that says MANAGE MY NETWORK PASSWORDS. You should now be presented with a list of accounts, some of which are the accounts listed in the .NET login. And a Remove button...click remove and update...you should be all set.

I assume that you are using Microsoft Internet Explorer.

1) Select the "Tools" menu
2) Select "Internet Options"
3) Select the "Contents" tab
4) Click the "Autocomplete" button
5) Uncheck the "Web Addresses" check box
6) Click "OK" on all boxes until every dialog is closed

This will work if your wife is not computer savvy, if she is, you will have to click the "Clear Forms" button below the check boxes.  Be advised that this will clear all forms, not just the one you wanted.

You may also want to setup individual computer login accounts that are password protected. With doing that each user has their own respective areas profile, caching, and file storage areas.