Problem with web shield: webpage not loading

Hello avast team,

loading all webpages have no problem, except www.synology-forum.de (it is a vBulletin based forum)
when web shield is enabled.

Avast:
avast! Free Antivirus Version 7.0 (37431)

OS:
OS X 10.8

System:
iMac mid 2010
Core i3 3,2 GHz
21,5 inch
8 GB RAM

The problem is, that www.synology-forum.de sends broken HTTP responses when the browser supports gzip content encoding. It sends a Content-Length header value of the uncompressed data where the size of the compressed data must be send. However as there are more such broken servers on the internet (http://forum.avast.com/index.php?topic=100557.0), we will see if we can find a workaround for them.

The hoster has disable http://httpd.apache.org/docs/2.2/mod/mod_deflate.html and it works now.

Well, there is no need to disable gzip content encoding, it must only be done properly according to the HTTP standard. But I suppose this is just a temporary solution until they fix their server configuration/content generation logic.