One of the biggest culprits I have found is Internet Explorer. It adds and updates .dlls that are used by other programs that have absolutely nothing to do with the internet. My company doesn't use those .dlls that I am aware of, but many do. If Poser is not a browser, how do you explain Content Paradise? I know it isn't up yet, but the room is there waiting for the server. The problem isn't testing against any one of the variables, it is testing every single possible configuration of variables. It can't be done. If Poser was only used in a corporate environment, then I believe there wouldn't be as many problems due to standardization. However, I suspect that most Poser users aren't running it in a controlled environment. Who knows what is running in the background? Even the end-user may not know of everything running.