WordPress MU

Hi there - I'm having a problem with the admin area - when clicking on 'publish' for a new post, I get a blank page. Going back in the browser, I can see the post has indeed been published.
The same problem occurs when trying to delete the post - but the post isn't actually deleted.

Where can I start to fix this?

Thanks.

Blank pages usually indicate PHP errors. Read through your PHP error logs and see what comes up.

Try to deactive your plugins. Maybe one of your plugins have a hook to publish and delete post function and that function doesn't work properly.

I solved that incresasing memory_limit

One of the reasons why you should be checking your error logs.

I am having the same issue. The thread is located here: http://mu.wordpress.org/forums/topic/17911?replies=17#post-99954

I'm not sure how I increase the number of internal redirects.

My .htaccess is as followed:

RewriteEngine On
RewriteBase /

#uploaded files
RewriteRule ^(.*/)?files/$ index.php [L]
RewriteCond %{REQUEST_URI} !.*wp-content/plugins.*
RewriteRule ^(.*/)?files/(.*) wp-content/blogs.php?file=$2 [L]

# add a trailing slash to /wp-admin
RewriteCond %{REQUEST_URI} ^.*/wp-admin$
RewriteRule ^(.+)$ $1/ [R=301,L]

RewriteCond %{REQUEST_FILENAME} -f [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule . - [L]
RewriteRule ^([_0-9a-zA-Z-]+/)?(wp-.*) $2 [L]
RewriteRule ^([_0-9a-zA-Z-]+/)?(.*\.php)$ $2 [L]
RewriteRule . index.php [L]

<IfModule mod_security.c>
<Files async-upload.php>
SecFilterEngine Off
SecFilterScanPOST Off
</Files>
</IfModule>

I believe a suggestion was made in your other thread. Posting in multiple threads about the same issue is usually frowned upon on most support forums as it just ties up the folks trying to help out.