Adobe Target

Hello experts!According to the Adobe Target Classroom book, PCID profile data is cleared/reset in a maximum of 84 days.Does this mean that I cannot connect two sessions of web activity that happen 4 months apart to the same person? ie is the PCID cleared, or just the profile data for that ID?If the latter, this will be a nightmare for Master Data Management, and maintaining a Single Customer View, unless I'm missing something? Thanks, Chris.Marketing consultant, UK.

I am experiencing TNT lag on a home page test. The first mbox loads then the second alternative loads a few seconds later. Anyone know why this could be happening?   thanks,lindawww.crystalbluepoolservices.com