[moved to technical support group]

Please don't ask the same question in multiple threads.  I've deleted the duplicate.

Most likely you don't have mod_rewrite working correctly as it appears to be looking in the file system instead of querying index.php

http://docs.elgg.org/wiki/Mod_rewrite_test

http://docs.elgg.org/wiki/Rewrite_test_failed

I'm sorry about the duplicate. I will see that, thank you

That is working, do you have another solution?

Check your path entry in the elgg_datalists table

How did you go about installing it?  If you're moving it from somewhere else make sure you followed the correct procedures: http://docs.elgg.org/wiki/Duplicate_Installation

Yes I'm instaling in linux, after developing some things on a windows system. On windows works, but in 
linux appears this :

[Sat Feb 22 23:50:08 2014] [error] [client 127.0.0.1] File does not exist: /var/www/rs/elgg/css, referer: http://localhost/rs/elgg/
[Sat Feb 22 23:50:08 2014] [error] [client 127.0.0.1] File does not exist: /var/www/rs/elgg/js/elgg.1391891741.js, referer: http://localhost/rs/elgg/
[Sat Feb 22 23:50:08 2014] [error] [client 127.0.0.1] File does not exist: /var/www/rs/elgg/js/developers, referer: http://localhost/rs/elgg/
[Sat Feb 22 23:50:08 2014] [error] [client 127.0.0.1] File does not exist: /var/www/rs/elgg/pg, referer: http://localhost/rs/elgg/
[Sat Feb 22 23:50:08 2014] [error] [client 127.0.0.1] File does not exist: /var/www/rs/elgg/pg, referer: http://localhost/rs/elgg/

file permissions possibly?  I'm assuming the all of the files are where they are supposed to be - but it's possible that apache doesn't have access to them.

The quick test for that is to set it all as 777

chmod -R 777 /var/www/rs/elgg

Which is fine for a localhost test - definitely do not do that in a production environment :)

That's not the problem!! :(
Anymore ideas?
Thank you

I still think it's rewrite rules because /var/www/rs/elgg/js/elgg.1391891741.js *shouldn't* exist on the file system like that.  It's looking for the direct file instead of routing through the elgg pagehandlers.

Did you try RewriteBase /rs/elgg/ in your htaccess?