did some testing for ya... i have an eMachines M6807. athlon64 mobility 3000+, ati 9600 mobility, 2GB RAM. it ran o.k. 30-40 fps until zoomed in gps (binos, etc would prolly be the same) view with a large forest in the background. then i got the jitters...16fps. i had to run at 1280x800 as that is my screen resolution and i need to figure out how to get it to resize to the entire screen instead of displaying in only part of the screen... i tried windowed mode as well, and it was marginally better but i could not get fps (fraps only works in full screen mode apparently). i then upgraded my notebook to an athlon64 mobility 4000+ (intended to do it this weekend anyway) and the fps in the zoomed/forest view was marginally better, about 20 fps. still got the jitters. so it is quite apparent that it is limited by the gpu, and a faster cpu does not help much in this case. i hear the 9600 mobility pro can be overclocked quite well, and i will be trying that next...and last resort will be figuring out how to fill my screen with a less than native resolution. you may want to do the same. it is a shame if you are dependant upon this laptop to decide to buy the sim or not. it is absolutely worth having! no other machine?