Does anyone have interesting horror stories of on-line trading problems, and whether any redress could be obtained from their broker (apologies if this subject is old hat - Iâm new here). I guess everyone must have their own tale - software crashes and inadequate backup happen to us all. However my own worst experience was a broker glitch that indicated a short sell in three index futures after I placed a buy order in just one contract. An hour of phoning established that the execution had been a buy, but filled three times. Needless to say the market had dropped 1 per cent and I swallowed the loss. The broker blamed a software bug at the exchange and cited the no warranty clause in the on-line trading contract. Another recent scare was a power cut that took down all my systems, but fortunately no positions were open at the time. These experiences certainly leave me nervous to trade in size on line. Does anyone else have similar stories to tell?