Probably not.
You may want to look at these threads:
http://forum.folding-community.org/fpost90628.html
http://forum.folding-community.org/viewtopic.php?p=107490&highlight=
Or configure your proxy to let it pass all HTTP 1.1 traffic.
PS, this mailinglists is intended for discussions and collaboration
wrt the FAH Wiki, you'll have better luck getting help if you post on
the Folding@Home Support Forum:
http://forum.folding-community.org/
Regards,
Bas
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