inconsistent problem during reconciliation

[Jack]

The problem is not with the reconciliation itself, but I have only had  
it happen during reconciliation - specifically of investment accounts.

When I get a statement from my broker, I open the ledger of both the  
investment and brokerage accounts.  I clear transactions in both, and  
when the numbers match, I do the reconciliation of the brokerage  
account first.  I then select the investment account in the ledger, and  
go to the Investments View to confirm the number of shares of each  
stock I hold in that account.  When I've done that, I then reconcile  
the investment account itself.  The problem is that sometimes  
(unpredictable, but usually for accounts with have more open  
securities) when I'm done in the Investments View and switch back to  
the Ledgers View, the ledger for the Investment Account is closed.  It  
is clearly not hard to re-open it, but I'd really love to know why it  
got closed.  Note that when this happens, I am not currently running  
the reconciliation wizard - I have completed the wizard for the  
brokerage account, and not yet started it for the investment account.

Any thoughts, or perhaps things to try running under gdb?

Jack