My thoughts on this is that it is due to the variety of high fidelity aircraft we host on the server. Other objects might contribute to this but they are far less taxing then any of the module aircraft.
Yes, we run a lot of scripts but none of them would have anything to do with video corruption. I have been on the VA server for hours at a time and have yet to see the issue and I am constantly F2 switching to see what pilots are up to. Though I do run a GTX 980 with 4gig and 16 g of ram. The mission may be contributing due to the large variety of aircraft we host on the server, but this is indeed a client side issue. Many experience the problem, and many others do not. Once we are able to identify the real cause, will see if adjustments can be made.
Shahdoh
VA Admin/mission editor