Thanks for the detective work evil. I will pass on your findings to the folks at Intellitxt.
In addition to maintaining a local hosts file, another recommendation that I have for visitors is that they review their browsers security settings. As I mentioned earlier, I have yet to receive a pop-up and believe that it is a result of changing a few default settings.
For example, accept cookies manually and use the restricted web site feature. Also, review security settings and disable automatic downloading of ActiveX controls. If you are not sure about disabling a specific setting, request that you be prompted instead.