I am using ESS 4.0.424.0 in interactive mode. I did a clean install and am having the following problems with ESS firewall: 1. I use Thunderbird with the Hotmail WebMail extension. The ESS firewall prevents me from sending/receiving mail even though there is a rule to all Thunderbird access. 2. The ESS firewall is preventing Winamp from accessing Online services like Shoutcast. Again there is a rule allowing access. This all used to work with previous versions of ESS but recently their firewall is a pain in the a.. I have searched extensively for a solution. If anyone could help I would really appreciate it. Thanks SurfRat.