Hi,
i understand that with "quotes" or without quotes. "C:\Program Files\OpenSCAD\openscad.exe" or C:\Program Files\OpenSCAD\openscad.exe, but both wan't work to me!
only C:\OpenSCAD\openscad.exe or "C:\OpenSCAD\openscad.exe" work fine to me.
Drive letters don't seem to matter, the main thing is that it's not installed under C:\Program Files\ with or without quotes (Cura automatically inserts quotes). Nevertheless, every time I restart Cura I have to go to Auto Tower, Settings and press OK, then it works... for whatever reason!