We recently upgraded our 5,1 Mac Pros to run Nvidia GTX 970 video cards for accelerated Premeir rendering but we ran into a problem with InDesign 2017 not seeing the card. Premier, Illustrator & Photoshop CC2017 see and use the card without any issues but for some reason InDesign does not. There are two parts to the GPU Prefs in ID (see pic), the upper part says GPU Performance with checkboxes to enable acceleration... both of which are grayed out and unselectable. The strange part is that the lower section of the prefs says GPU Details then shows the card, its model and memory. As far as I can tell it sees the card but refuses to use it as the checkboxes are grayed out. Before we upgraded we were using factory ATI Radeon 5770 cards and they worked fine in all CC2017 apps. Is there any workaround to fix this issue? Has anyone else ran into this problem?