In short: 2 board members were kicked off the board illegally (after a probably-illegal set of amendments made it onto the ballot). The 2 members filed suit against the board.
There's lot of other potential ugliness going on at the ACNA board as well.
The link below has a good summary, and there's many more docs at http://www.porridgehead.com/acna
http://www.porridgehead.com/acna/Juliano-letter-ACNA.pdf is particularly good reading.
On the Street: 2006 Imola Avant S4 with everything but sunshades
On the Track: 1995 Spec Miata
Gone but not forgotten: 1997 A4, 2000 TT, 2004 S4