MiniMate upload problem

["Stan Crump" <stanc@amintech.com>]

Running: Minivend 3.11, Perl 5.004_04, RedHatLinux 5.1

I've scoured the Minivend archives & am still at a total loss for a solution
for the following...

I just installed MiniMate and can successfully modify any of the various
database files...  When I try to upload, download, or view existing (or new)
pages using MiniMate, however, Minivend loads the special page,
"interact.html" with the following error message:
=======================
Something has gone wrong, and we did not receive the response we expected
from your browser. There was the following problem: Content type
'multipart/form-data; boundary=---------------------------209694619500' for
form submission is not application/x-www-form-urlencoded 
=======================

AND, (regardless of browser type) the following error is reported in the
catalog's "error.log":
=======================
webster.amintech.com cPKamE8v:vender - [02/October/1999:18:08:53 -0500]
charolet
tefordtrunks /cgi-bin/charolettefordtrunks/process Difficulty interacting
with b
rowser: Content type 'multipart/form-data;
boundary=---------------------------2
749717132045' for form submission is not application/x-www-form-urlencoded
quequeg.amintech.com cPKamE8v:vender - [02/October/1999:18:08:53 -0500]
charolet
tefordtrunks /cgi-bin/charolettefordtrunks/process Full client host name: 
webster.amintech.com
> Full client IP address: 227.52.47.104
> Query string was:       cPKamE8v;;39
> browser: Mozilla/4.6 [en] (Win98; I)
> last_url: /process
> prev_url: /config/upload_pages
> 0 items in main cart.
=======================

There is no error message produced in the Minivend error.log and there is no
error produced in the web server's error_log.

Any suggestions will be GREATLY appreciated.
Thanks!
Stan Crump