In the addition to the steps taken so far as posted by me few days earlier, I have also taken the following steps as advised by the Steam community link shared by Hagar.
Disable the airline traffic density, set to 0%.
Add in the following lines in the fsx.cfg (extracted from http://steamcommunity.com/app/314160/di ... 978584/#p8);
1) Calculate the Affinity Mask with this http://www.gatwick-fsg.org.uk/affinitymask.aspx?SubMenuItem=hardware and add in these lines at the top of the fsx.cfg. 'n' is the calculated
value based on my CPU's cores.
[JOBSCHEDULER]
AffinityMask=n
2) [Display] header:
WideViewAspect=True change this from FALSE to TRUE if you use a wide screen aspect ratio monitor.
3) [GRAPHICS] header:
HIGHMEMFIX=1
No 'discoloration' of the aircraft and error surfaced during my flight so far and I'm monitoring; everything is working as it should.
Many thanks to everyone here for your help and advice.
