Since it's a new year, Quicken may put up a "Quicken 2013 is available" promo dialog at starupt. Clicking on the Close, Learn More, or Upgrade all cause Quicken to crash or hang. To get past this dialog box uncheck the "Remind me Later" box, then close the window using the window manager's close button for the dialog window (not on any button that's part of the dialog itself).
This issue has also been reported on Quicken 2011.