I also have this issue (I'll say right now that I haven't found a fix, to save you getting your hopes up ) and these are my findings:

 

Only exists with the 737NGX

Only exists with FSX in fullscreen mode

Exists whether using EZCA or not

Exists to a much greater extent when using "1/2 refresh rate" Vsync mode in Nvidia Inspector, though turning this off and not using any other Vsync modes or Vsync lines in FSX.cfg does NOT entirely solve the problem i.e. I still get flickering with no Vsync, but it's not as bad

When using the 1/2 refresh rate Vsync mode with the windowed fix from here I don't notice the problem at all

 

I am currently using the latest WHQL drivers (306.97) with a 1GB GTX 460, which is overclocked and overvolted significantly. Reverting to stock, however, has no effect on the flickering. My CPU (Core i5-2500K) is also overclocked but I highly doubt it is the cause and it should be very stable.

 

Note that I have recently performed a clean install of Windows 7 (64-bit), FSX + Acceleration, and the only add-on I currently have installed is the NGX. I've tweaked my FSX.cfg file according to the previously linked guide.

 

Interesting Ellis.... my conclusions EXACTLY!

Interesting Ellis.... my conclusions EXACTLY!

What I find odd is that we all have exactly the same issue, but then some people don't seem to have it at all. Maybe they only fly in windowed mode?

 

To be honest I mostly fly windowed at the moment since I have things like AS2012, Vatspy, and others running on the same PC with one monitor and I need to switch to these easily. But once I uncover an issue like this I feel like I MUST fix it even if it's quite minor

It's bugging the bejeezus out of me, but I hate windowed mode!

I have been fighting with this annoying flash/jump issue when changing views for some time (with Ezdok, NGX, and 1/2 Vsync). I have a GTX680 with the latest 300 series drivers.

After endless testing I realised that it was caused by having any sort of text line in the screen while having 1/2 vsync enabled.....in my case the text line was the red view indicator on the top right corner of the screen (the little description of the current view that comes out every time you switch view...) don't ask me why this happens because quite frankly I don't know. I removed this text from the screen by setting these values in FSX.cfg in Display Section:

 

ChangeTime=0.000000

TransitionTime=0.000000

This has fixed the issue: I can switch view with Ezdok and keep 1/2 Vsync enabled with a completely fluid transition....

 

Give it a try......

 

Regards

.....and make sure all your views are set at exactly the same zoom level (I use 0.70)..this is very important for a fluid transition between views...

Ooh, this sounds promising and I'll be sure to try it out and report back. I had noticed that (seemingly randomly) sometimes I would change views and it would be perfect without any flickering - it may well be that this was because I'd waited for the red text to disappear. I don't really like the red text anyway, apart from for working out which zoom level you're at.

How do you change zoom level please? Thanks

How do you change zoom level please? Thanks

If you use Ezdok, if I remember well, open Ezdok GUI, select a view, press 2 in the num keypad to enable view point adjustment, and then use the mouse wheel to adjust zoom level. Remember to keep the red view indicator (top right corner of the screen) visible while you make such adjustments because this is the only zoom level indicator you have....

If you use Ezdok, if I remember well, open Ezdok GUI, select a view, press 2 in the num keypad to enable view point adjustment, and then use the mouse wheel to adjust zoom level. Remember to keep the red view indicator (top right corner of the screen) visible while you make such adjustments because this is the only zoom level indicator you have....

Yep, this is right for Ezdok. If you're not using it, hold space and use the mouse wheel.