Okay well I just spent my Last 20 dollars today buying Sim city 4 deluxe I install the whole things everything smooth then I go to play it the picture of that bridge comes up then suddenly my computer restarts brings me to this blue screen then Im back at the sign in page. Is this because I have vista??? I have the sims they work fine on my computer... Can I have some help to solve the problem it would really be much appreciated. Thanks Gwax PS I have a laptop that change anything?