Hellow all, hope this is the right forum for this question. I got the box version of GTR Evolutoin and all has been great with my G25 Wheel and running Vista Home Premium 64 bit 6 gigs ram i7 core oc 3.84 on water and two GTX 280 in sli although GTR Evolution is not supported by sli its still runs it great. Just one map, the Macau 06 in some parts of the sky I get an dark flickering sky that really wrecks such a great looking track. Its so distracting. It such a bummer any body know a fix for this.