I just upgraded to 4.0.3. When I start the program processing an image, after a few seconds both my displays go black for about a second. Then they come back but the GP window is solid white. Task manager tells me that GP is not responding. The only other program running is Lightroom.
I am using Windows 10 with 32GB of RAM. Input is a TIF, 4500x3500 pixels. The previous version of GP worked fine.
Ideas? I have emailed Topaz about this, no response yet.