Ok so at the moment I have way too much time on my hands and I've been engrossed in FSX so much so that I've even joined an FSX forum!
I've just loaded up the aerosoft LuklaX and Twin Otter add ons and they are absolutely f

g brilliant. The pdf. manual which comes with the Twotter runs to 115 pages!
My system runs FSX + the acceleration pack and any of my add ons without a hitch I have all the variables set at max and it runs just fine, brilliant scenery, reasonable traffic levels and the real time weather option seems to match actuals pretty closely.
I'm off to have another run at Lukla