[Zope] OSError 13 at file upload; Zope2.6

[Danny Morgan]

Hello,

After upgrading to Zope 2.6, I've begun to encounter problems uploading 
files of sizes greater than 1K. It doesn't matter whether it should be 
an image, file, photo, page template, or whatever.


===        The following error output is typical          ========

Site Error
An error was encountered while publishing this resource.
*OSError*
Sorry, a site error occurred.
Traceback (innermost last):

    * Module ZPublisher.Publish, line 150, in publish_module
    * Module ZPublisher.Publish, line 114, in publish
    * Module Zope, line 171, in zpublisher_exception_hook
    * Module ZPublisher.Publish, line 63, in publish
    * Module ZPublisher.HTTPRequest, line 365, in processInputs
    * Module cgi, line 520, in __init__
    * Module cgi, line 613, in read_multi
    * Module cgi, line 522, in __init__
    * Module cgi, line 623, in read_single
    * Module cgi, line 645, in read_lines
    * Module cgi, line 692, in read_lines_to_outerboundary
    * Module cgi, line 652, in __write
    * Module cgi, line 738, in make_file
    * Module tempfile, line 152, in TemporaryFile

OSError: [Errno 13] Permission denied: '/tmp/@1555.14' (Also, an error 
occurred while attempting to render the standard error message.)

===========    end of error output  =================

Any clues?

I have very little development time invested in 2.6, should I  backtrack 
to 2.51?

 Thanks,

Danny