Hi Noah,
You may want to also post this in the Office Live Communication
Server newsgroup (link below).
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I have a small LCS2005 deployment w/ access proxy, where all users connect
remotely using WM 5.1.
IM, file transfer, and remote assistance work fine, but application
sharing/whiteboard requests fail.
does anybody know what might cause this? >>
--
LLet us know if this has helped you,
Bob Buckland ?

MS Office System Products MVP
*courtesy is not expensive and can pay big dividends8
A. Specific newsgroup/discussion group mentioned in this message:
news://msnews.microsoft.com/microsoft.public.livecomm.general
or via browser:
http://microsoft.com/communities/newsgroups/en-us/?dg=microsoft.public.livecomm.general
B. MS Office Community discussion/newsgroups via Web Browser
http://microsoft.com/office/community/en-us/default.mspx
or
Microsoft hosted newsgroups via Outlook Express/newsreader
news://msnews.microsoft.com