
The original file. A PNG

The file, after exporting as PNG

Because there are no read/write rights for normal Users.
(Kudos if you can identify my wallpaper)
I've already tried running XnView as administrator, but that didn't work. Any ideas on how to fix this?
I am running:
Windows 7 Professional SP1 32-bit
XnView v1.97.8
Graphics card: Nvidia Quadro FX 770M