I am using WebTrader to trade US stocks and options. It is more than a week that Webtrader does not work. I have emailed IB and have also posted my concerns here but it seems that they are just ignoring it or can not fix the problem. Bid and ask prices are wrong on most cases. Last price quote is delayed. Option quotes are delayed and in many cases it does not show bid and ask price. I was assuming that it should be an hour interruption but now it seems that it may takes months !!!. Webtrader was working perfect and I don't know what has happened recently. I should say that I am extremely sorry for IB and my two thumps are down for them.