I dont know wether many other people have had the same experience as me but i feel it could be a health issue. Whilst playing the Devidian Mission released on the 16/10/10 i found that the blue light that is on the map when you meet the Devidians on the bridge, put servere strain on my eyes. This in turn caused me to have a migraine. I know it could just be me, but i would rather cryptic play safe and take this into acount.
Thank you for your time