My 5000S went into a boot loop and following instructions on this site, by using hyperterminal and a null modem cable I reflashed the Blade firmware and then flashed the 9991 software and all worked fine. However, whilst flicking through channels my box reverted to boot loop for no apparent reason. Again I have reflashed it and its up and running. Does anyone have any idea what is causing the box to go into these boot loops. Thanks