RE: No fix as of IE8 v8.0.6001.18702 Tina L Feuer 27.Mar.09 05:37 PM a Web browser Usability Issues 8.0.2; 8.0.1Windows
You can add the white-space:pre-wrap property to the stchat.css style sheet that integrates with the Notes 8.x to workaround this issue.
The location of stchat.css may differ depending on what version of Lotus Notes you are using. (You may consider searching your drive for stchat.css).
It is located with the C:\lotus\notes\data\workspace\.config\org.eclipse.osgi\bundles\###\1\.cp\css where in one instance it was located where ### was 530 in another it was located in 489.
Update the following properties within stchat.css: