Your user name and password are remembered by storing them in a "cookie." Your web browser stores this cookie in a file on your system. The following instructions are provided to help you remove the cookie this option writes on your system. Each browser will write it's own cookie.
On your desktop, open My Computer, and then open the folders Local Disk, Document & Settings, then find the folder with your network login (in the example below my folder is named "awalker", my network login). Then click on the Cookies folder.
Now, right click on the Cookie folder and select the Search option on the pull down. In the "Containing text:" field, enter "smdata" and click "Search Now", in the Search Results pane, you should see a cookie. Highlight the cookie, right click and select "Delete". This will remove the Remember My Password cookie.
On your desktop, open My Computer, and then open the folders Local Disk, Programs Files, Netscape, Users. Find the folder with your name.
In this folder you will find a file named Cookies. Right click the Cookies file and select Open with Notepad. Do a FIND in notepad on "smdata". This will highlight the cookie to delete. Delete the "SMDATA" cookie, close and save the file. This method will preserve any other cookies you may have on your system.
Go to Edit > Preferences > Privacy and Security > Cookies
Select "Manage Stored Cookies"
Select the mentor.com SMDATA, SMSESSION, and supportnet_greeting cookies:
Select "Remove Cookie"
On your desktop, open My Computer, and then open the folders Local Disk, Programs Files, Opera. Locate the file named "cookies4". Right click the file and chose "Open with Microsoft Word" (or WordPad. My example uses Word).
When you have the file open in Word, do a find for "SMDATA". This is the cookie you will need to delete from the file.
The text highlighted in RED above indicates the cookie to remove from the file. Delete the SiteMinder cookie, save the file and close your editor.