nah that one stargate didn't blow up to destroy the replicators, they had to send their stargate into hyperspace before anubis could make it explode or sumthin like that :s in one episode, they use anubis's doomsday device to reverse it's frequency so that it would only kill the replicators and not the planets in every known galaxy. maybe that's what you got mixed up with ^^ also, in that episode, daniel jackson was able to get in the replicator's heads and make them do stuff they didn't want him to do. which is he made them stop for a few minutes before he got attacked by a replicator and was forced to lose concentration. when he made them stop allover the galaxy, it gave them time to reprogram that device to use the frequency that destroy's replicators only. since all rep's are on a network type connection with eachother, jackson was able to control every single rep