I've opened over a dozen new accounts in the past few months, and with the new accounts Q2009 H&B would always crash at the end of a One Step or Scheduled Update. I think I hit some barrier at around 98 accounts to download. I couldn't even split up my accounts between One Step and Scheduled because Scheduled Updates would not retain my choices. It seemed to almost randomly choose which accounts are checked. IOW, I couldn't choose to download FIs A-L via Scheduled, and M-Z via One Setup Update.
WELL! Just installed Q2010 H&B, and Scheduled Transactions *IS* retaining my choices.
I'm going to re-boot, and see if I can do all 98 downloads in one fell swoop :-)