I have just got a new computer (uses windows 10) and done a fresh install of Amibroker 6.31 on it. Copying the Amibroker folder from my old machine to new had some issues but I have, to the best of my knowledge, set it up the same as the old version. Everything works perfectly, except the 3d optimization chart doesn't display correctly. It has a black background rather than white and some apparent resolution issues.
Also, when I try to rotate the image, the image drags, as per the below.
I have played around with the resolution settings on my computer without any effect.
I realize this is possibly an issue with my computer settings rather than Amibroker, but any advice would be appreciated.