[GNC] Reconciliation discrepancies

[Rich Shepard]

Every now and then one of my bank accounts doesn't reconcile because what
the bank shows differs from what GnuCash shows. The amounts are significant.
What puzzles me is that the previous month's balances (bank and GC) match
and so do all the transactions. But, the end of month balances don't match.

Many decades ago a penny or two difference when reconciling a bank account
was common; I assume due to rounding errors. But why it is now more common
(but sporatic) puzzles both me and my banker. We've gone over the
transactions shown by the bank and by GC and neither of us can explain the
discrepancies.

Has anyone an idea of why this happens?

Rich