Is your browser auto-loading your password protected collections? This is because it has stored information in it's "Cache" files to stop you from having to re-enter the collection information.
How to Clear Google Chrome's Cache
Click the Chrome Menu (Chrome Menu, located in the top-right corner)
Select More Tools > Clear Browsing Data
A pop up box will appear, select the check-boxes for the information that you wish to remove.
You can select the date up to you wish to remove the data.
IE. Today, Last Week, or "Beginning of Time" to delete everything
Select Clear Browsing Data
You have cleared your Cache!
How to Clear Firefox's Cache
Click the menu button and choose Options.
Select the Advanced panel.
Click on the Network tab.
In the Cached Web Content section, click Clear Now.
How to Clear Safari's Cache
Click Safari in the upper left hand side of your screen.
From the menu that appears select Preferences
In the window that appears, select to Privacy Tab, and click the button Remove All Website Data
Click Remove Now in the pop up window
You have cleared your Cache
How to Clear Internet Explorer's Cache
Open Internet Explorer.
IE 8: From the Tools menu choose Internet Options.
IE 9: In the upper right corner, click the small gear icon (to the right of the star icon) and choose Internet Options
On the General tab, under Browsing history, click Delete.
Un-check the Preserve Favorites website data box.
Check the Temporary Internet files, Cookies, and History boxes.
The Form data, Passwords, and inPrivate Filtering data boxes may be left un-checked. You can check them to delete this data if you so choose.
When finished, click OK to return to your Internet Explorer window.
Close the Internet Explorer window and reopen.