When Jack is talking to Camulus in front of the open Stargate, you can clearly see a black line from top to bottom where the LCD screens are joined together.
When Jack is talking to Camulus in front of the open Stargate, a black lapel mic is clearly visible on Camulus' shirt.
We hear General O'Neill mentally dictating his resignation letter; he says he regrets not being able to fill Hammond's "sizeable and shiny shoes" and at the very end of the episode when the camera zooms into the letter you can read the line and it says only "sizeable shoes". However, this may also be yet another instance of O'Neill's tendency to make smart-ass remarks, moderated by the need for formal conduct in a letter.