It's because of how emacs 23 handles long lines.
You should customize appropriately:
set line-move-visual to nil via the customization interface.
>>>>> "Bart" == Bart Bunting <bart@xxxxxxxxxxx> writes:
Bart> Hi, I recently changed to using the emacs-snapshot
Bart> package under Ubuntu Intrepid.
Bart>
Bart> it reports itself as emacs 23.0.60.1. vm is version
Bart> 8.0.9.
Bart>
Bart>
Bart> Since doing this I have noticed that when arrowing
Bart> through messages in vm some lines are repeated multiple
Bart> times. This doesn't happen if I use c-e n to read the
Bart> entire message.
Bart>
Bart> This also happens in mail composition buffers.
Bart>
Bart> It is happening in this message as I write.
Bart>
Bart> Has anyone else seen this?
Bart>
Bart> I'm not sure how to go about finding out what is
Bart> happening?
Bart>
Bart> Currently help reports:
Bart>
Bart> Enabled minor modes: Auto-Composition Auto-Compression
Bart> Auto-Encryption Blink-Cursor Display-Time
Bart> Dynamic-Completion File-Name-Shadow Font-Lock
Bart> Global-Auto-Composition Global-Font-Lock Mc-Write
Bart> Menu-Bar Mouse-Wheel Shell-Dirtrack Tool-Bar Tooltip
Bart> Transient-Mark Vm-Pgg-Compose Voice-Lock
Bart>
Bart>
Bart> Regards
Bart>
Bart> Bart
Bart>
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Bart> "emacspeak-request@xxxxxxxxxxx" with a subject of
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--
Best Regards,
--raman
Email: raman@xxxxxxxxxxx
WWW: http://emacspeak.sf.net/raman/
AIM: emacspeak GTalk: tv.raman.tv@xxxxxxxxxxx
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Google: tv+raman
IRC: irc://irc.freenode.net/#emacs
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