After downloading transactions from my bank, I go into the Register and
Accept the transactions. Then I want to mark these as Reconciled. I like the
keyboard shortcut CTRL/Shift/M since it's easier to use this then to click
through mouse shortcut menu.
But often, the keyboard shortcut is not responsive. I've figured out that to
"wake-up" the shortcut I go into Help menu and click MS Money Help, then just
close the Help window and the keyboard shortcut suddenly is awake and works.

I use Money 2007.