I will test the information that you gave, perhaps also the chipset drivers installed are also responsible.
The strange thing is that before I went, maybe after hours sometimes closed the simulator and let me on the desktop, but now the flaws are persistent, all the textures disappear, sometimes some of the covers are black or flashing sub marker boards and pipes.
Although many flaws are also in areas Stormfly leave the link, graphic areas of high stress or very dense textures such as ports and convoys.
I'll try and tell you and I make a list of things to be taken into account to prevent it. Many errors, I could prevent the graphics and lengthens the distance between failures.
Thanks for the info Stormfly You are a milk cow in the middle of ocean.

Now I know which direction to take, and had tried almost everything.