Ok, well im just ranting here, but throughout the whole episode i was screaming this at the tv.......DISABLE THE PEAGUS DHD'S!!!!
We know that the Gao'uld where capable of creating a programe that dialed all the gates at once and we know from SG1 Avenger 2.0 that all the gates update from time to time.
The Ancients created the stargate system, the Nox and Tollan could even build a Stargate, so why could they now just send an Update Telling the Gates to shutdown.... none of the villages in Peg where advanced enough to fix it.
You could say that with out the gate system poeple would be stuck on there planet..... well either the wraith cull 10 planets in one day with hyperspace or 1 planet with out it and are stuck there untill the friendly neighbourhood Aurorer Class comes and blows them up.
Atlantis could have easly stocked up supplies and there hyperdrives where not effected so they could still get about just fine, in the long run it would have saved an entire galaxy from culling...
Sorry if you feel asleep lol,
What do you think?