http://blog.arvixe.com/how-to-increase-uploading-limit-in-elgg/

Rodolfo Hernandez
Arvixe/Elgg Community Liaison

Maybe it's in your server htacess file, or your php.ini file size limit.

Ooh.. Thank you!! ^^ I was blind when I looked for this.. I only saw <IfModule mod_gzip.c>...

But it still doesn´t work... Here´s the code from the .htaccess:

 # limit the maximum memory consumed by the php script to 64 MB
 php_value memory_limit 64M
 # register_globals is deprecated as of PHP 5.3.0 - disable it for security reasons.
 php_value register_globals 0
 # post_max_size is the maximum size of ALL the data that is POST'ed to php at a time (15 MB)
 php_value post_max_size 15388608
 # upload_max_filesize is the maximum size of a single uploaded file (12 MB)
 php_value upload_max_filesize 12242880
 # on development servers, set to 1 to display errors. Set to 0 on production servers.
 php_value display_errors 0

Is there still something wrong?

@theYoRecords

Create a php.ini file in your root

upload_max_filesize = 10M

post_max_size = 10M

Check with phpinfo() the values used for the variables post_max_size and upload_max_filesize. If your webserver is using suphp the settings made in .htaccess for php variables are getting ignored. Creating a php.ini file to set these values might not help much either as these settings will only be valid for the directory this php.ini file is located. Instead you should rather adjust the variables in ther server-wide php.ini file. Though it might depend on your hosting plan if you have access to the server-wide php.ini config. If in doubt, ask your webhoster support.

@iionly

It's what i did when adjusting .htaccess didn't work and everything on my site's working fine. 

Thanks for your help. I talked to my provider and realized that it doesn´t work on this webspace anyway... I´ll move to arvixe.com next month..