No log - it's irrelevant, see below.
Imgburn pops up an error when you close it (about 3 seconds after you click close).
It shows a fault in the nvinit.dll.
I've fixed it by setting it in the nvidia control panel to default use nvidia gpu to run, rather than auto select.
I accept that this is not an imgburn problem (although the error pops up on ImgBurn exit, and nothing else I have does this error).
I'm just wondering if anyone has any idea why it's doing this. I'll post this in the nvidia forums too, see what happens.
Thanks.