Do you use real-crossover cables, or rely on auto-crossover?
Autocrossover

Well... I wish I could help with the Linux setup but unfortunately I know nothing about it. I'm an avid winders user.

Good luck with it though; Trio is awesome, I like it so much that I let my dad *borrow* the Rio Central indefinately (even though I paid like 1500 bucks for it brand new).