It happened again to me this afternoon. It wasn't a total erase, tho. Some of my chord revisions reverted to a previous state, as if I hit undo repeatedly.

It happened when I was tooling around in the RealTracks Picker. I clicked the RT Picker icon and started playing around in there. I was in there awhile, auditioning the WMA samples. I had inadvertently made changes I didn't want to make, so I hit the cancel button to back out w/o committing to the changes. When I got back, many of the measure/chord revisions I had made since the last hard save were undone.

That's all I have at this time.

-Schnaz