Hey Thalamus, thanks again for the tips.
I did have cabinet mode unchecked, don't know how or why but prior to going away everything stayed as it should. Come back from holidays and the computer is a little different....anyway, thumbs up on that one.
I did check the refresh rates, both at 60Hz, but differing resolutions 1920 x 1080 for playfield and 1680 x 1050 for backglass. My backglass is B2S. I have three monitors from 2 video cards, this problem was there when I had all three from the GTX750ti. I have the onboard Intel driving the DMD monitor.
I have noticed today that the longer I play the svchost.exe gets larger and this correlates with the degradation of the issue. i.e. the longer I play, the worse it gets.
I will investigate this, but big ups for the starting point and especially for the cabinet mode.
EDIT - So I was playing with Windows Services and turning little things off and on, of course, Windows didn't like that and then would only let me boot to safe mode. 5 times of trying to fix what I had done and I was ready to get it started so I could just move to Windows 10. Anyway, once I did manage to get 7 to boot up, I thought I would play the problem table to see how it was. You wouldn't believe it, it was a lot better. In fact out of the 5 games I played, stuttering appeared on only one ball & it wasn't terrible.
I may delay the Windows 10 install after all.
Edited by blackvulcan3, 14 January 2017 - 08:16 AM.