Black border around jpeg but not Raw's

[doobs]

Playing a bit with XnView getting it configured like I want and have come across an interesting "artifact" that I can't seem to figure out how to rectify

The jpg's in the browser display with a black border whereas the raw's don't:

Can this be changed so they are the same (not-black preferably)?

Thanks

chris

[xnview]

you have black border because embedded thumbnail is used, please check Settings>Thumbnails

[doobs]

Thank you!