For TwsActiveX Excel sample sheet, the quotes on Tickers page will stop refreshing sometimes. Even after I disconnect it from Tws and reconnect it to Tws, I still can't get the quotes refreshing. I can get the quotes refreshing only after I restart the TwsActiveX Excel sample sheet. Do any one know how to avoid the quotes on Tickers page stop refreshing? or how to get the quotes refreshing again without restarting the TwsActiveX Excel sample sheet?