"After updating my version of SWAT4 to the latest patch from Vivendi, I soon discovered that the game was phoning home to grab posters to place in the enviroment of the game's levels. Not only did it do this for every level that was played, but it also informed the advertisers of how long each poster was viewed, and by which gamer. Expect to see this kind of advertising and brand placement becoming standard fare in the very near future."
I have found it helpful to do the stretching exercises my physical therapist recommends. Do some core strengthening exercises, such as the ones highlighted at The Mayo Clinic. By keeping your core strong, your back won't put itself in a position to cause that sciatica pain you are having.