1. From
Menu, select
My tools > Settings.
2. In the
Settings window, click the
History option in the
Messaging tab.
3. In the right pane, uncheck
Save history.

4. Click the
Set per contact link.
5. From the
Don't save history pane, select the friend for which you want to save history and click the left pointing arrows button; The name now appears in the
Save history pane.

6. Click
OK to close the
Set per contact window, then click
OK to close the
Settings window.