Undoing a Light Preset...

I recently got this product:
https://www.daz3d.com/iradiance-pro-series-16k-hdris-photo-studio-for-iray
And while it's a beautiful backdrop for doing "photo studio" looking renders, I've found that even if I start a new scene, or close DAZ3D and reopen it, the light preset I used last is still there, not the plain empty background that one normally gets with a fresh launch of DAZ3D. How do I reset this back so that I dont have a "photo studio" backdrop on every render?
Post edited by sayun on
Comments
Try render setings - reset to defaults ( just under the blue render button ) - or you can select the enviroment tab( render setttings ) and ensure there is no enviroment in the enviroment map slot - also you can check the enviroment tab which controls the screen background and select "None"
that should help you figure it out ~