I have an early '06 Mini that worked well since I also switched over to ethernet because it was slightly faster until I realized that the airport will not connect to my 4th generation (latest version) and it won't take the correct passwords since I cleared it on the mini but I couldnt figure it if its something simple that I cant understand it, yet. Next- I had kept external drives connected to my Mini since day 1 for backups and eventually time machine but it won't boot up the externals and I first bought another external at the store to test it if maybe the exteral failed, but it was no chance. Now I run the mac mini on USB 2.0 now, too. Same thing about the airport since I couldnt figure it. I'm also planning to replace my DVD-RW optical until after I open up the mini to make sure there isnt just a bunch dust in it or anything or maybe one of those laser cleaner discs unless anyone has any ideas. I honestly didn't use the dvd optical that often until I needed to burn a dvd for data, and thats a bit frustrating. I made the mistake by not taking time to drop off my mini before applecare ran when I reminded myself that I missed that chance more than a year when it ended. Thanks!