Css not working on Piwik 2.2 (no replies)

Hello,

I have a problem with version 2.2. After installing, application does not load styles.
I try to solve it adding these lines to config.ini.php:

[Debug]
disable_merged_assets = 1

I also tried to solve it restarting website an application pool and reinstalling but it did not work.
When I use Firefox developer tool I can see a message that says:"the stylesheet can not be loaded"

Can anybody help me with this problem?

Thank you.