path problem on windows

Problem: I am running chora on Windows XP, and I cannot get the path to the 
svn executable to work.

In chora setup, I have tried many different permutations to write the path 
to the svn executable. For instance, in the svn field I have tried 
"c:/progra~1/subversion/bin/svn.exe". With and without "c:/" with / replaced 
by backslash or double backslash does not matter. There is no directory 
listing, and no error messages. In fact, whatever I write in the field for 
the svn path in the chora setup does not matter. Not even a clearly bogus 
path. So at least one problem is to get this field to matter, or to write 
the path correct?

As an aside, the path to the horde.log logfile seems to be working. the 
field value there is "/tmp/horde.log" and it ends up in c:\tmp\horde.log.

I do not get any error messanges, not even in log files using debug log 
report level. There are no files showing in the directory listing when using 
svn. And no error messages, whatever path I write to the svn executable.

running "svn ls file:///d:/repos/" gives the directory listing as expected. 
Likewise, using TortoiseSVN on a remote machine, I have no problem in using 
repository browser. Yes, d:\repos is the repository, not the checkout. See 
below for the sourceroots.php settings.

After scanning the bugs database and the mailing listing archive, I have 
found one related question to my problem, see 
http://archives.free.net.ph/message/20050711.060305.572c9e65.en.html 
Unfortunateley, I could not find a follow-up on this thread.

Info on the settings