Just a quick update.

 

It looks like it is my PMDG 737 that is causing the Stackhash CTD. I removed the 2 files as you suggested and re-installed my add-ons apart from my payware aircraft and all is fine after 4 long haul flights using the Areosoft Airbus A320/A321, but soon as i try using the PMDG the Stackhash CTD returns. 

 

It all seems very strange as my PMDG has always been fine until i installed a number of add-ons all at once then the Stackhash CTD started.   

It all seems very strange as my PMDG has always been fine until i installed a number of add-ons all at once then the Stackhash CTD started.

I doubt it is the PMDG aircraft causing your issues. PMDG aircraft do use more resources as they are very detailed. This causes additional stress on your system and FSX. A StackHash is usually an issue with high settings or a bad tweak that is eating up system resources. You have to look at the fact that 98% of all PMDG users do not have problems with their aircraft so there has to be an issue with the installation of the aircraft or high settings or bad tweaks or a combination of the above. I do not own the Aerosoft Airbus products but assume they do not use as many resources as PMDG products.

 

Best regards,

I've re-installed the PMDG and all seems to be fine again. I've done 2 long flights with the 737 and i haven't had one Stackhash error since. Normally they would happen whilst setting up on the ground or not long into the flight. Since i have re-installed all of my add-ons, i can only guess that it was a bad configuration somewhere. Thank you for all your help and suggestions, very much appreciated.