I just noticed that the order of the messages are no longer "older first" but they seem random, like this:

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Exporteing large files to excell David Norman 10/11/2004 12:14:15

 Re: Exporteing large files to excell Jim Winter 10/11/2004 12:26:03
 Re: Exporteing large files to excell Esparta Palma 10/11/2004 12:22:35
 Re: Exporteing large files to excell Sergey Berezniker 10/11/2004 12:17:26

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Expand/Collapse this section  Chatter

 Re: World's cleverest woman can't find a job Tracy Holzer 10/11/2004 12:18:20
 Re: World's cleverest woman can't find a job Jim Nelson 10/11/2004 12:25:10
 Re: World's cleverest woman can't find a job Dragan Nedeljkovich 10/11/2004 12:15:29

Also, I found that the vertical sizing of the frames (treeview against the message area) does not work in Netscape anymore, and It was working fine not long ago.