Hi Alex and Dave and Mystic
Done all of the stability optionals.
I think the graphics card also was an Important one.
What happened In the beginnning when I purchased the computer I7, was that a blue screen kept appearing regularly and sent machine back and I think that was something to do with memory.
That was a while ago.
I put Sonar down for a while and decided to get my playing dexterity up to scratch and work with Sonar after that.
So I do not have to cut and paste too much.
This blue sreen only happened once and now have updated everything through my to my online computer to Edimax usb on music machine.
HERE'S HOPING!!!
All the best
JOHN