I was using ST8 and it was working fine but now with ST9, my graphic card is no longer working..
I have lower the View setting to (Software Driven) it helps but it's lagging more.
Can I lower other settings ?
More than likely a graphics driver issue. Contact GTAC/partner to find the right driver for your machine.
I get that every once in a while when moving dimensions but have been unable to repete it enough to bug report it.
Yes it's definitely a graphic card issue but I have legacy card so no more driver uptade. I will have to update the graphic card or change the machine.