NV+ boot(?) issues - disks are clean

Me again. The saga actually continued. I have no idea if others will benefit from this, but after a few days of copying data from the NV+, it died again. I had enough messing around with that, so I pulled the drives. I put all four drives into a Linux box I threw together, mounted the drives per the instructions here: http://home.bott.ca/webserver/?p=306 and started copying data. Somewhere along the line, the array froze and couldn't be accessed from the Linux box. I then grabbed some 2TB drives and used ddrescue to make a copy from the 1TB drives to the 2TB drives. One of the 1TB drives had an error that didn't seem correctable. Given it was a RAID array, I mounted the remaining 3 2TB drives (that copied cleanly) and spent about a week copying data from there.

With that copy complete, I'm now happy to have my data back. I then zeroed out the drives last night and put them back in the NV+ with the hopes of using it as a backup. After building the array, I let it sit overnight and the darn thing shutdown _again_. At this point, I'm pretty well convinced my NV+ is haunted. I suppose I'll try a full factory reset at this point, but it's really weird to be having a problem with, essentially, brand new WD Red Pro drives.