Daniel's SG-1 left shoulder patch shifts from almost falling off/rotated 45 degrees forward to correctly-positioned and vice versa several times while he and Carter are in the control room talking to General Hammond.
After the team enters a darkened room by cutting a hole in the wall, a stagehand can be seen in the makeshift doorway operating equipment that appears to be an R/C remote control.
When Carter advises Hammond that purging the computers will put them out of action for a while, Hammond says he has already notified all off-world teams to stay put. Given that the computers and consequently the Stargate are out of action, there's no way that he could have done this.