Hi Guys, Tried to give the 64 bit version a go due to a couple of bugs arising in my 32 bit saves. I followed the instructions given which was: - Download Unity 4.6.4 - Install and follow path "Editor/Data/PlaybackEngines/windowsstandalonesupport/Variations/win64_nondevelopment", copy the "player_win.exe" to the KSP folder, and rename it "KSP.exe". I named the old file KSP.x32 and the new replacement KSP (And no it isn't named KSP.exe.exe! lol, It just appears as KSP) - I then followed the path "Editor/Data/PlaybackEngines/windowsstandalonesupport/Variations/win64_nondevelopment/Data/Mono" and copied the "mono.dll" into my KSP folder under "KSP_Data/Mono". I deleted the old mono.dll. - I double click on the new KSP.exe and the game boots up normally, however i'm assuming it is still the 32 bit version because there is no indication of it running in 64 bit mode in the bottom right corner. I have re-traced what I did and re-read the instructions but to no 64 bit avail. I feel as if I am missing something or most likely not followed the instructions carefully enough? Any help would be greatly appreciated! Thank you in advance.