Fist i don't have access to the system or access log.
I have askt the hosting if i could get it, i have changed the sql password now also.

Before i had time to change it the index got changed again.

Hi!

You ported that Aeros theme on your own? Because it's for Wordpress, not Serendipity.

And again, where did you get a "swedish language pack"? It comes with serendipity already.

And again: The event plugins are important. Also which other applications you run on your host. Chance are VERY ...

Hi!

You only listed the sidebar plugins. The event plugins are much more important!

Hmm Swedish lang pack, and template.

What do you mean with lang pack? Did you download any language pack frmo a foreign site? Swedish already comes with serendipity. Which template exactly did you use?

Regards ...

Hi!

Do you use any other tools on your page? Did you check your server access log to see if there was suspicious activity, strange requests?

If it happens again, remember the timestamp when your index.php file was last changed and compare that to you rserver access logs or FTP access logs.

In ...

I went to look at one of my pages.

www.minidator.info

In got the message Error on line 663 index.php
So i went in to take a look and on line 663 a long line of code with links to other pages had bin inserted.

I think the links was to x-x-x sites.
I marked the whole line and deleted it and than ...