I'm using Bitdefender TS 2011 (v14.0.28.351) with Windows 7 Home Premium 64bit. I noticed that when I use IDM(Internet Download Manager), Mozilla Firefox, IE 8 BDTS 2011 keeps track on a constant bandwidth usage with its firewall when even non of those programs does a download job!!! It is so very frustrating and I'm using a limited internet connection. Bandwidth is wasting without use. I tried many things like renaming those dll s. Making a new registry values for BDTS 2011. But nothing worked for me. 
I need a help here.
Thanks.