Screen Doesn't Clear After Logout

My screen doesn't clear after logging out on a virtual terminal.
Instead of clearing and then printing the login, it prints the login
immediately, leaving portions of my session on-screen.

This wasn't happening until I put the following line in my
.bash_profile:

"exec ssh-agent bash"

(without the quotes). I did this so that I could use ssh-agent
without having to start it each time.

How do I fix it so that the screen clears after logout?
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Nathan Saper (natedog@well.com) | http://www.well.com/user/natedog/
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