Good to hear. If your game continues to be stable then it would indicate this is a GPU issue (since it's somewhat old). You can also try changing 'iShadowMapResolutionPrimary' to '1024', which may allow you to turn the slider graphic settings back to high. It might also make your game looks less pretty than if you were just using a lower shadow slider setting with the shadow resolution value at '2048', I am not sure, but this is something you can play around with to see which works best.
I have no problem with the quality at the moment, to be honest. Yes, shamefully this computer is a little dated. Over the summer, I will be investing money and getting a nice few upgrades: Greater RAM, SSD. better graphics card etc
I would also seriously consider updating video drivers..... no information on what version he has, but, I would guess, older....
Thank you, I will also do this. 