It is permanently stuck on if I try editing textures in photoshop and there is no apparent way to access the plug-ins options.
Hi @springbastard! The option to re-enable the NVIDIA DDS Read Properties dialog is in Help > About Plugins > DDS - NVIDIA Texture Tools Exporter...:

Checking this checkbox will make the NVIDIA DDS Read Properties dialog appear next time you load an image:

Hope this helps!
–Neil