** Fresh Install of dss6.0up65_b5217.oe_i.iso 64bit ** Raid 5 Not Supported Error

hi,

i have recently bought new kit to install open-e dss v6 64bit to replace my v5 32bit servers.

but after installation i logged in throught the web to activate the product i noticed something wrong in the vol manager section it can only see 2 of the 3 raid arrays.

http://www.n-tiresystems.com/opene6raiderror.png

my new build consists of:

motherboard: tyan s2927-e
cpus: 2x amd opteron 2222
ram: 2x kingston kvr667d2d4p5/k2 4gb
primary hdd (for os): kingston 16gb ssd

3ware 9650se 8port raid pcie x8:

Array1Raid5: 4x 500gb raid5 (Unit S000 - os can't see this)
Array2Raid1: 2x 1tb raid1 (Unit S001)
Array2Raid1: 2x 1tb raid1 (Unit S001)

any help much apprecieated.

alex