PANIC: OSAddressInVArray: VArrayElement index is too large

We seem to be getting this error fairly reliably in 6.0.1 with compact running. Trying to nail down the db that causes it now (ug, note time of this post).

References to this error in R5 here: http://www.thenorth.com/notesnet/Kbnv11.nsf/852561c1006719a98525614100588964/70d697e94bb73bf1852567e40074463d?OpenDocument

Running RH 8.0, up2date run tonight.

All help much appreciated.

=B-)