Jerky Video for isolated user

Hello,
I recently launched a Flash website that has video tutorials
synchronized with Flash animations. Overall the site is functioning
well, but I have an isolated instance of user having very jerky
video with the audio occasionally cutting out.
His connection speed is fine (3572.7 Kbps). When I asked him
for details he said the video was jerky from the start, and 'the
video cycled from smooth to jerky once every half to a whole
second.' He is using Flash player WIN 9.0.28.0, on win XP with all
updates. When asked he did not provide the browser version.
Here is a link to the site:
http://articles.moneycentral.msn.com/Investing/StockInvestingTrading/Technical_Analysis.as px
It's set up using net connection and net stream for flvs
hosted on a media server. The flvs have cuepoints to trigger the
animations. When a given flv is finished downloading the next flv
in the list is then preloaded. The buffer time is set to 6 seconds.
I haven't been able to recreate the problem. The feedback
that we've gotten suggests that the site runs fine. If anyone has
trouble viewing this please let me know and please provide details.
Thanks in advance for any help!
Joe

avi is a very antique media-wrapper.. no idea, if any Windows system is able to playback h264.avi ..
Plan A)
choose an older codec, such as h263, mpeg4, ...
Plan B)
choose a younger wrapper: h264.mp4 is THE universal combo on my behalf .....
Plan C)
use a proprietary codec, wmv, you have to purchase a license from Microsoft/flip4mac to create such on a MacOS system...

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Jerky Video for isolated user

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