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Ink, It might have been the early access version?  Seems to me that I shot off a few broadsides but then didn't really get into it too much.

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Thanks Powderhorn and Ink.

I wasn't aware of the Feature Levels.  For that matter, until a couple of days ago I wasn't aware of Shader Models either.  

It does make me wonder why I was able to run the demo version of Naval Action though.

I may have to do some after Christmas shopping.  Thanks to all for the help and Merry Christmas / Happy Holidays!

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Thanks everyone.  There were no errors detected when I ran dxdiag, Jean.

Where did you find those numbers, Hethwell?  Like I said, my card says it has DirectX 11.

I would rather not get a new card just to get by for now since I hope to upgrade to a new pc soon, but I guess I might have to if Shader Model 5 is out of reach for this one.

Here is my driver info for my GTX 260:

Main Driver: nvd3dumx.dll,nvwgf2umx.dll,nvwgf2
Driver version: 9.18.13.4195
Date: 1/29/16 6:08:42

 

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Thanks for the quick reply, Powderhorn.

I have an i7 CPU, 2.67 GHz  9.00 GB RAM  NVIDIA GeForce GTX 260 video card and it does have DirectX 11, but I'm not sure I have the latest driver (how would I do that?).  For what it's worth, I was able to try out the demo or early access mode last year some time and it worked okay.

[Shader Model 5 required]

I just purchased Naval Action and looked forward to joining in the fun but when I try to start the program it says that Shader Model 5 is required for Naval Action and that I have Shader Model 4.
I've tried to download Shader Model 5 a couple of different ways and ran the application only to have it blocked as malicious by my Trend Micro anti-virus software.  Does anyone have any suggestions?  Thanks.