[DM-MUG] OT- Switch vs. hub vs. router

[AB]

So I added, managed neew contacts into the addressbook on OS 10.4.11 and thought I'd have it look
for duplicate entries, then hit cancel when it prompted me deciding against it. then ALL 131 of my
contacts I've built up over the last year, poof. 
Any ideas?

Also has anyone else been having problems with their airport cards? Ever since I did the last
apple updates which included an update for airport cards, the thing has bee nothing but a head
ache. 

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