Pentaho CE 5 CDE resource (css) not found

Hi all,
I've just installed Pentaho CE 5 on a mac OS X 10.7 machine. When I try to create a dashboard via CDE, I can add a css file (select it via de popup screen) and also save this, but when I open the dashboard the css is not applied.

Looking at the page source code via the developer tools in Google Chrome, I can find the link that is created for the css file:


http://localhost:8080/pentaho/api/re...=1389872750087


When I open this link in a new browser tab, I have no data.

When I manually change the link in the browser to:


http://localhost:8080/pentaho/api/re...ashboard.wcdf/res/home/admin/style2.css?v=1389872750087


(notice the bold part), the css file is found.

I'm new to Pentaho CE and CDE, so I probably do something wrong, but I can't figure out what it could be.


Thanks for your help.