Hi!
That sounds for me, as Don would have observed my blog in the last days.
I have such problems and my fellow, who owns the server, on which my blog is running, was scolding, that I am experimenting with those plugins, which cause such problems ...
After saving/actualizing a draft suddenly I was thrown out and I got that message on a white page:
Forbidden
You don't have permission to access /serendipity_admin.php on this server.
------------------------------------------------------------------------------------------
Apache/2.2.21 (Debian) Server at blog.ost-impuls.de Port 80
and on next day (1th february, after my fellow was 2 hours looking for the causes, till he could get running the blog again) that:
Internal Server Error
the server encountered an internal error or misconfiguration and was unable to complete your request
Please contact the server administrator ... and inform them of the type of error occured and everything you might have done that may have caused the error....
My fellow has found the reason. He wrote:
Nein diesmal is es dein paranoider BLOG (=no, this time it was your paranoid Blog)
# BEGIN s9y
ErrorDocument 404 /index.php
DirectoryIndex /index.php
<Files *.tpl.php>
deny from all
</Files>
<Files *.tpl>
deny from all
</Files>
<Files *.sql>
deny from all
</Files>
<Files *.inc.php>
deny from all
</Files>
<Files *.db>
deny from all
</Files>
# END s9y
#SPAMDENY
# Deny From 127.0.0.1
#/SPAMDENY
it was Deny From 127.0.0.1
.htaccess was faulty.
He has after this taken away my rights for writing into htaccess-file, he wrote. I do not know yet, how much it hinders me on working fluently.
I read now Garvins recommentation to not use spamblock-plugin.
Okay, I want to follow than the recommendation to use bayes, written in the thread from before christmas (my answer is yet open).
best regards
Joerg