8 Ghz, DDR-3 , 1333 mHz Gskill.
Dual Channel.
Right, installed DCS World and all modules fresh again.
All works now.
Also i saw i had version 1.2.1 installed instead of 1.2.2.
All modules were 1.2.2.
That could caused the problem i encountered.Not sure.
So far , so good;keeping those fingers crossed.............:)