I am not a 'techie', and my system is quite simple and meagre compared to many on here but I wonder why so many experience crashes, freezes etc with the NGX yet, to date, I havent. (am touching wood as I speak... hope I'm not tempting fate here) I use 2 pieces of software which I find invaluable and, I hope they may be of use. FSX Booster http://fsps.737ng.gr/ (they also do other variants depending on what may best suit your pc) and... Advanced System Optimizer v.3 which I obtain from http://store.hermanstreet.com/content/smarthtml/advanced-system-optimizer-pc.php?cmpid=137636&gclid=CL_e96jMu6sCFWMntAod3T0CtQ my advice ? Keep it clean .. and keep it simple Thanks to PMDG .. you've created an amazing piece of kit with the NGX.. and your dedication to simulation AND your customers is amazing !!!