After ~Crash Sequence not correct

Severity: Annoyance
Setup: PostgreSQL 7.1.2 on Dual PIII WinNT4 server + Cygwin 1.3.2
PostgreSQL is run as a service and when rebooting (which doesn't shutdown -
previously on cygwin list (hence the ~Crash in title)) I have twice noticed
that a sequence was not properly updated, however records with Primary keys
based upon the sequence where present in the table. (I *think* it was a
different table & sequence last time).
- Stuart