title: GoogleFinance often returns #N/A and internal error messages while getting stock quotes
body: <p>Anyone know workarounds to make GoogleFinance actually work?  It works for a while so it is not a problem with my formulas but then periodically the cells that were showing stock quotes suddenly show "#N/A" and if you hover over them it shows that GoogleFinance experienced an internal error.   It's really buggy.  Changing the refresh interval doesn't help, in either direction.   Anyone know workarounds to avoid the errors and have the spreadsheet simply show (and keep showing) the stock quote data without the errors?</p>