Hi everybody im new to avsim, the main reason I created this account was to ask this question.....I have a windows 8 dell computer with an i5 and the stock graphics card but that's not the problem because I run fsx perfectly....but I have this weird problem with sp2 that I don't have with sp1. I seem to get better frame rates and no stutters in sp1, but most addons if not all are optimized for sp2 so theres really know other way for me. the main difference is when I put the frame limit to 100, sp1 works perfectly but sp2 theres lag and tear when I pan around the aircraft its so annoying seriously I just don't get it I cant play like that. I definetly know sp2 is causing it no doubt but I just don't know how? if it were for me i'd stay in sp1 but I need sp2 for the addons...if anybody has any ideas, could it be windows 8? please let me know so I can sell my computer and get a vista instead please this is life or death