VideoCache Not Working

I installed the new VideoCache, and notice that there is a problem getting it working.

I am using Apache, Squid, Dansguardian and Adzapper.

At first I can see lines using 127.0.0.1 in my videocache.log file:
2009-09-18 12:37:11,244 2609 127.0.0.1 - REQUEST - http://www.youtube.com/get_video?video_id=-xEzGIuY7kw&t=vjVQa1PpcFPTlj5Y...

I had to change my dansguardian proxyip = 127.0.0.1 into my machine IP, now I can see logs of my machine IP xxx.xxx.xx.x

But still problem:
2009-09-18 12:21:41,079 2664 xxx.xxx.xx.x -xEzGIuY7kw DOWNLOAD_ERR YOUTUBE An error occured while retrieving the video.