After Installing SP2 and several other security features, I went online to a site where I was required to put in a password (a site a visit regularly) and I did so. I visited the site several hours later, and when the mouse pointer hovered over the password input box, a dialogue box with the password inlcuded appeared.

Yikes!

My passwords to various sites are being cached or stored by IE and are visible whenever the mouse pointer hovers over the input box.

How do I disable this? If I cannot disable this, then by running CCleaner after each internet session will it clear these passwords?

Thanks in advance for your suggestions and advice.
Halder