Crashing is quite an issue with AutoCAD based products, but my opinion is the following:
I have a quite good gaming graphics card in my notebook(2 years old), with win8 installed. I had crashes many times before, without any typical reason, and on the top, they were inconsistent. Then I tried many graphics card driver(even 8-10 earlier version), and after many tests, I found one that worked fine. The result: newer driver version does not mean better. It is a frail balance, but finally I only have crashes once in 2 weeks. My card is nVidia gt555m, the driver version is 314.22, but I think every hardware-op system spec is different, so you have to test. I am hopeful, that there is a light at the end of the tunnel.
I installed SP1 yesterday and I am trying to reduce the amount of time I spend in the realistic visual style. I will be doing 3D modeling work all day today so lets see how it goes. I will let you know by weeks end if this seems to reduce the frequency of crashes.
Thank you again for your suggestions
After installing the SP1 update things do seem to be running a bit better. I still have quirky things occuring and have to close P3D and restart several times daily but the crashes do seem to have been reduced. Part of it may be because of my heightened anti-crash management. However I did notice that P3D started MUCH faster the first time this morning. (It was taking over 10 minutes before applying the SP1 update).
I will keep you updated on this and thank you again for your input as well as from all who posted to this thread.