Raid Broken

[Gorlock]

2) The RAID array is broken. The system has 1 system drive (250gb) and 2 1tb RAID1 mirrored drives. The RAID drives worked fine the first few days, then, inexplicably, disappeared - Kubuntu no longer assigns them a drive letter.

I'm a Windows guy, and don't know anything about Linux.
There's a error message on boot, which somehow relates. Please find a screenshot attached. Also, here is the contents of the checkfs. log:

"Log of fsck -C3 -R -A -a
Mon Jul 20 10:36:18 2009
fsck 1.40.8 (13-Mar-200
fsck.ext3: Unable to resolve 'UUID=6678f047-bc4e-4b00-b989-02951326618a'
fsck died with exit status 8"

I did some testing:
-the RAID BIOS claims the 2 disks are NOT in a RAID, but independent. Kubuntu says "I see the disks but can't read them".
-SATA RAID is enabled in the standard BIOS.
-The RAID disks cannot be read in another computer either - I tried both disks, on a WindowsXP machine - they are recognized, but Windows says "Partition info unavailable" (paraphrased)
-I tried inserting the disks into different slots, no change.
-I get the same boot error NO MATTER IF THE DISKS ARE INSERTED OR NOT. This one confuses me!
-the C: system disk works fine, as does Kubuntu, since the RAID disks are just for data.

We have files saved on the RAID disks, so if possible, we want to save the files.

[Segfault]

Did you change something in the BIOS setup that may have caused this?
Does this computer have Linux only? Dual-boot?
What software was used to build RAID? mdraid or dmraid?