Hi everybody, My Mac Mini has been running smooth since I bought it in Feb but beginning last week: For the 1st time I got the "Airport has self assigned IP address 169...and will not be able to connect to the internet" problem. Recently Firefox has been periodically running slower and I've been getting hard-to-close popups with video ads that run automatically which is driving me nuts. Could this be caused by the above mentioned? I just fixed the airport issue and previous threads suggest this could very well happen again. Does anybody know THE CAUSE? Any ideas on how I can avoid/limit/prevent this issue in the future?