Has anyone else seen this issue?

I started with a single 120GB drive for the Central that had about 90 GB of tunes. I made 2 exact copies of that HD and put them into my two Centrals. On the first machine, I thought I'd keep all A-M music and the second HD would have my N-Z music. I wanted to do this because the single drive was getting sluggish and I thought this would buy me some performance and give me more available space on the Centrals.

But when I tried to use jEmplode to delete half the music from each drive, a large task for sure, it started out working okay. I was deleting a few artists at a time and re-syncing. But after deleting about 25-30 GB out of the 45GB that I wanted to delete, the Central would spontaneously reboot. Sometimes I'd have to try the operation two or three times before it would work. It got to the point that almost any "delete" operation would cause the Rio Central to reboot (Even if I initiated the operation from the Central front panel)....

So does the delete operation eventually do something that messes up the Central HD? I ultimately gave up on this idea because it was just too unstable and I didn't want to consider these two new HD's to be my Master copies of my tunes....Any ideas or comments?

Thanks, Randy