Strange Not Found (URL was not found on this server) problem with backhand

Hello mod_backhand users,

I have two backhanded servers (RH9 & RH7.3).  It is a pretty typical 
configuration where requests come in via https and are backhanded via 
http.    Requests come in through a virtual IP maintained by wackamole 
held by one of the two machines.

I am doing some testing with byRandom because it distributes requests to 
both boxes and is simple for our QA effort of our application on this farm.

The apache/backhand configurations are the same on both servers.

If I start up one or both machines, everthing works fine. 

Howerver,  If both machines are running and I stop apache on one of them 
(doesn't seem to matter wich one), then every third or forth request get 
s a "Not Found" error.    All my virtual hosts have different log files, 
so I know the requests that work and the requests that fail are going to 
the same https virtual host.   As at this point only one box has apache 
running, there is no where for backhand to be sending the request 
anyway.  The /backhand-status/ looks as I expect (the machine I killed 
apache is red).

What is really bizzar, is that the access_log for this virtual host is 
identical for the request that works and the request that fails with a 
Not Found (at least the URI is identical, not the error codes).

For example, here is the entry form my https virtual host (the first 
requests work, the third does not):

69.162.181.9 - - [09/Jan/2004:12:37:21 -0800] "GET 
/p5/images/b.profile.h.gif HTTP/1.1" 304 -
69.162.181.9 - - [09/Jan/2004:12:37:21 -0800] "GET 
/p5/images/b.profile.h.gif HTTP/1.1" 304 -
69.162.181.9 - - [09/Jan/2004:12:37:22 -0800] "GET 
/p5/images/b.profile.h.gif HTTP/1.1" 404 231

Then the third requets produces the following error:

[Fri Jan  9 12:37:22 2004] [error] [client 69.162.181.5] File does not 
exist: /p5/images/b.profile.h.gif

Again, If I only start one machine, this doesn not happen.  It only 
happens when both machines are in the farm and I take one of them out.

In my https virtual host I have the following:

<Directory "/usr/local/apache-1.3.28-backhand/htdocs/p5/images">
        #Backhand byBusyChildren
        Backhand byRandom
</Directory>

And of course my DocumentRoot is /usr/local/apache-1.3.28-backhand/htdocs

Any help would be much appreciated.
Thanks,
-Rama