Avenger 2.0 - S7-E9
Corrected entry: Dr. Felger says that his assistant is good with numbers as she says something like "the probability of choosing the correct sequence of 7 non-repeating symbols from a pool from 39 is..." She can't be that good with numbers - the last symbol is known and is always the same (from earth), being the point of origin. So really they are choosing 6 symbols from 38.
Avenger 2.0 - S7-E9
Corrected entry: The whole premise for this episode is that we can transmit or implant a virus into a DHD which will scramble the coordinates, so that the symbol on the DHD will not correspond to the same symbol on the gate. Because of this, SG-1 accidentally manage to disable every gate in the gate system. Has everyone forgotten how to manually dial a gate? As the virus only infects the DHD, you can still dial manually, as the DHD is not required when dialing manually.
Correction: The gate and DHD are connected, the DHD is mostly a controller and both together operate as a computer, in this case, it is not the DHD that is scrambled, but it is the DHD that has scrambled the gate. This is why Earth's gate was not scrambled, it has no DHD.
Correction: When Doctor Felger and Major Carter travel to the planet to investigate the virus program, they learn that the original program has been modified, possibly by Ba'al. If the program was modified, it would not behave as originally intended. The two surmise that the modification was done to help Ba'al, and the program was behaving as now intended.
Avenger 2.0 - S7-E9
Corrected entry: Right after Jack reports that the gate is down and Carter and Felger are talking about...something...you can still see Jack in the screen in the background. He actually moves closer to the MALP camera twice. As the camera angle changes, you see him do it again.
Correction: Not a mistake. Scheduled transmissions were possible FROM Earth's Stargate - no reason why Jack would've cut off. His moving closer to the camera was a comic moment.
You're missing the point of the mistake. Continuity mistakes occur when the camera angle change and no time elapses. The mistake is saying Jack moves closer to the MALP's camera and then does it again in the next shot (with no time for him to move back to repeat the action).
Correction: If you know the origin planet's symbol, it is 6 in 38, but the origin is not always Earth. Each planet has a different symbol and not all are on the standard 39, many times the origin symbol is picked out because it is not on the standard 39.
Sol Parker