Campaigns with Piwk

Hello,

I tried to work with campaigns. But it doesn’t work…

For example:
On my homepage I’ve installed the latest piwik version (0.2.30).
I called the Url: http://otell.de/?piwik_campaign=Myfirstcampaign .
For this I used another browser with which I’m not logged in as admin in piwik and with no cookies.
In the Live view of piwik I see the visitor, but at the campaigns there are always no data…
I tried it with different ip adresses, different browsers, without activatet Live View Plugin - always the same.

What I’ve done wrong?

Greetings Matthias

Edit:

Solution: I installed piwik again and now it works!