Well that seemed to work. Clicky on the photo and you can see.

Larsenex,

    I am glad you managed to get a picture of this onto the forum. It is exactly like what I reported in "Strange horizontal lines .." but I was unable to figure out how to add a snapshot to my post.

My problem is also with a GeForce GT 6xx product line (mine is the GT 640 with 16G). The entire series uses the same driver. There are some differences, however.

1) What level driver do you have (mine is 9.18.13.4043 dated 6/12/2014 19:47:35).

2) When did you last update your driver (I did mine within a couple of days of release -- 6/12 - 6/14).

3) Did you notice the horizontal line affect in the previous build of the game (0.20) -- I did.

4) I found that turning off both "enable bloom" and "enable ambient occlusion".  If either of these are on the lines return. Does this match with what you are seeing?

5) I saw this from the start of a new game. I have not progressed far in my first 0.30 game due to trying to narrow down conditions where this affect occurs.

6) I see this affect flicker on momentarily at times after turning both "enable bloom" and "enable ambient occlusion" off.

While this may begin to look like an NVidia driver problem, it could also be a problem in coordination between NVidia code and GC3 code. I think the SD devs should look at this first, then bring the NVidia devs into it if their help is needed.

Here is another screenshot showing the lines for two empires. Mine is blue, the Drengin's is red. This implies that the color of the lines is related to the empire owning the ZOI. I used DropBox for this one and it was very easy and convenient.

Here is my debug.err.

The game creates the debug.err file while you are playing the game. The file is quite large, so it is not a good idea to cut and past it here (although that will work). Using DropBox is a better, faster, and more convenient way. You can find a free offer for DropBox at www.dropbox.com

Once you have completed the setup for DropBox copy the debug.err file from Documents -> My Games -> GalCiv3 to your new dropbox folder. Then follow the instructions in DropBox to create a link to the dropbox version of your debug.err file and post the link here.

Silly me! I did not notice a gray slanted line in the backround of the mini map until now.

So I do have it as well, is there something I should do?

Another factor is how far you are zoomed in or out.

It's in my mini regardless of zoom. :-/

WOW. How about that. DxDiag shows a different date and version number than GeForce Experience does. Once I understood that I realised you and I are using the same level driver. GE shows "Geforce 340.43 Driver" and "Release date 6/17/2014  Version 340.43" and DxDiag shows "Driver Version: 9.18.13.4043" and "Driver Date/Size: 6/12/2014 19:47:35, 17553032 bytes".

Before NVidia released GE, all we had to go on was what DxDiag gave us. I imagine what GE gives us is the way NVidia wants it to be known as.

The horizontal line issue seems to be due to a beta driver being used on those Nvidia graphics cards. The best solution right now would be to rollback your video card drivers to an earlier more stable driver. I hope that helps!

I am using "GeForce Experience".  Does anyone know how to tell this thing to back off a beta driver?

I wanted to updated Everyone regarding the horizontal Lines bug. I did roll back my beta driver and installed the current official driver from Nvidia and the lines are gone.

Thanks to Rayman for identifying and fixing the issue!