I also ran the suspect slice through slicedump; the bit that looked abnormal to me was "There were 4 numeric errors". I don't recall seeing that in good slices(and would fit with negative values). But it's not the usual symptom of bad slices(orphaned records), which is why I tried it out.

Jaidev-you mention you're running your own emulator, are you also rolling your own data? All I'm doing is grabbing the nztivo.slice file and naming it appropriately for the emulator environment, are you doing something completely different? If so, pray tell what?