CTD when playing my created missions

[_RAAF_Smouch]

Several times over the couple of days I have tried to create a mission in FMB, and save it in the Single mission folder, which it does and I can select it.

The problem I strike is that it either CTD at the 50% loading or the mission will load and, as in this afternoons case run for about five minutes and then I CTD with the 'Launcher Failed' error message pop up.

The mission is a simple on with 3 flights of He-111s and one flight of 109E-4's taking off from separate bases and one flight of six Spit Mk II's taking off and me sitting in a single Spit elsewhere in England.

With the settings I am using I can scroll through each flight to track their progress to see how the mission will run with the view to converting it to a MP mission down the track.

But five minutes in 'Launcher Failed" and back to desktop I go. My system specs are as listed below.

I think it's not a graphics issue because this has happened across two different driver versions.

Any ideas?