problem inverted colors

[Giuliade]

Hello, I have been having a problem on autocad (2017), I don't know why but I have completely reversed colors, not only those of raster images (as I read in other discussions) but also lines.
to understand: the background is of a marroncino color and not the usual color of autocad and if I try to trace a red line this appears blue and vice versa. the problem arises only in the work but not in the press in fact once the passage from dwg to pdf the colors displayed are the right ones.

Did I change any settings? How could I solve the problem?

thanks:redface:

 

[MassiVonWeizen]

https://www.cad3d.it/forum1/threads/51448-colori-visualizzati-in-negativo

 

[Giuliade]

Thanks, I followed the link and disabling hardware acceleration I solved the problem. Thank you very much