Subversion ( SVN ) Add-on

Has anyone had a problem with svnserve not being found? I just installed the Add-on, created a repo using the command-line, and loaded my dumped copy in. I can browse the repo fine in a web browser, but anytime I use svn+ssh, I get the following:

! svn list svn+ssh://myusername@mynas.local/svn
bash: line 1: svnserve: command not found
svn: Network connection closed unexpectedly

From Googling, it appears that svnserve isn't in the path. But I have added /opt/rfw/bin to every place I could find, and still no dice. If I ssh in as root or myusername, svnserve is found w/ no problem.

Please help!

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[edit]

I was messing around with ssh commands and came across this interesting scenario:

! echo 'which svnserve' | ssh -T root@mymachine.local
/opt/rfw/bin/svnserve

! echo 'echo $PATH' | ssh -T root@mymachine.local
/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/bin/X11:/opt/rfw/bin

! ssh root@mymachine.local /opt/rfw/bin/svnserve
You must specify exactly one of -d, -i, -t, or -X
Type '/opt/rfw/bin/svnserve --help' for usage

! ssh root@mymachine.local svnserve
bash: line 1: svnserve: command not found

The directory is in the path... the program is there... why can't it be run?