Version:            (using KDE KDE 3.1.4)
Installed from:    SuSE RPMs

It is not possible to use the mouse to view an article more than 18 thread levels deep (i.e., with more than 18 references, the headers for all of which are stored locally by KNode).

Attempted action:  Click on such an article's author in the article list (since the subject will usually be out of sight).

Expected result:  Clicked row should be selected with an "active" highlight bar, and the corresponding article should display in the message pane.

Actual result:  Clicked row is selected with an "inactive" highlight bar; the "active" highlight bar remains over whatever message was previously selected.  The article in the message pane does not change.

However, using the keyboard to select the article (i.e., using the up/down arrows to move the inactive highlight bar to the correct article and then pressing enter) works as expected.

An example of an article evoking this behaviour is <0b53qvo99gcbe7m3ctku9vtu5uv28k8csu@4ax.com>.  (This message is part of a thread which goes over 20 levels deep.)

I have a feeling that this bug may be related in some way to Bug 67141.  At least, they always co-occur for messages over 18 levels deep.