WG12864A-TMI-V#N show distortion graphic on the right side

Hello,

I use the Winstar Graphic Module WG12864A-TMI-V#N
REV.G for a long time and works very good.
LCD Module WG12864A until year 2007 all work fine, my problem is with Module produced after that,
it show distortion on the graphic on the left side of the display.
What can i do, to fix it?
Is this a timming problem of my software? and if yes, welch timming, need please more information.
Actualy i can not use this display and want not to change to another brand.

Thanks for any help
Best regards
Sato