A subscriber of GuerillaStockTrading writes: When I try and get a stock quote from Yahoo the chart shows for a split second then it is blank. How can I fix this? This is caused by a pop up blocker. Turn off your pop-up blocker. The newer versions of Internet Explorer have this turned on by default. Also, some tool bars like Google's tool bar have a pop-up blocker on them so you will need to turn this off as well. Finally, most security software comes with a pop-up blocker so make sure your security software is configured to allow pop-ups from the finance.yahoo.com domain.