[Radiant] Random 500 error

[Mariano Viola]

Hi,

I'm working from two month on a radiant based government site that has
worked fine until two days ago.
Now I get a random 500 internal server error when I try to edit/view
pages in the admin interface and the error is transparent to the
server logs.

At this point I'm very depressed  because I can't find the problem
with the high probability to lost my work that now is on a testing
server.

This is my server configuration:

windows 2003 server
apache 1.3
ruby 1.8.6
rails 12.3
mongrel 1.0.1
mongrel_service 0.3.2
radiant jargon branch at revision 507
reorder, page_attachments, fckeditor and search extension.

Thanks,
Mariano