missing dynamic drive

I have an Asus M2NPV-VM motherboard with NVIDIA nForce 430 Chipset
SATA RAID controller on.

I am using the controller to connect to 4 disks:
2x160GB in mirror configuration and
2x400GB in a stripe configuration.
The Operating system, XP PRO SP3, sees 2 Drives:
one Basic Disk - 153GB as the system and boot partition
and one dynamic disk - 754GB for Data

I converted the DATA drive to Dynamic Because i planned on mirroring
it later.
a few hours ago i Booted it up and i now cant access the DATA drive.
In Disk management i can see the dynamic disk, DATA, shows as Offline
and has a red 'no entry' icon on it. when i click on reactivate disk i
get an error messege from the LDM(Logical Disk Manager) saying : "The
operation did not complete. Check the system Event Log for more
information on the error"

when i check the event viewer-system log i get this error messege:

Event Type: Error
Event Source: LDM
Event Category: None
Event ID: 2
Date: 19/08/2008
Time: 00:49:27
User: N/A
Computer: GEVER
Description:
INTERNAL Error - The disk group contains no valid configuration
copies (C10000B6).

For more information, see Help and Support Center at
http://go.microsoft.com/fwlink/events.asp.


I tryed booting to the recovery console, to see if i can see it there,
but when i log on and type MAP, i get a list, in which the DATA drive
is listed but with out a drive letter or a label just as :
?: \device\Harddisk1\partitio1

I tried running device manager in hidden device mode and removed
'ghost' devices by running the following commands:
set devmgr_show_nonpresent_devices=1
cd %SystemRoot%\System32
start devmgmt.msc
then removed drives that were ghosted and restarted to no avail still
can not import or reactivate.


i can find the files using disktest - http://www.cgsecurity.org/wiki/Main_Page.
so i know(i assume?) the files and drives are ok, and i am almost sure
its a partitioning issue

can you please tell me how i can access the drive ?
I am assuming that the data is still intact because the controller
utilities cant find any thing wrong with it through post. i know i
might be wrong, but i have a feeling its to do with its partition
table.
Can any one help?