http://www.jandrconsult.com/blogs/brian/archives/2005/02/system_changes.shtml Because a system is an inter-related grouping of elements, changes to any one part of the system will cause changes- some positive, some negative. Well-designed systems have 'buffers' in key areas that prevent minor changes from negatively affecting the overall system. en-us http://www.phenterminemedication.net/ Phentermine]]>