Broken Tracking Image

Was read FAQ carefully, and made some test

After clicking on Broken Image in FireFox and click Open Image I see that path for Image is looks like this:""

I think it should be just like:

in the pagesource it looks good:

<img src=“” style=“border:0” alt="" />

So how can I resolve my problem?
Thanks in advance to everyone who can help! =)

Upgrade to Piwik 2.0-beta 301 Moved Permanently

Then go to Settings>Javascript code and copy the new code in your pages.