G4 lampshade imac colors inverted

[pixmaniowa]

The entire monitor is wrong. Quicktime logo is orange. everything is negative. Is there a software fix or is it hardware?
Thanks
Pix
PS it is 800mhz 768 RAM running10.4.11

 

[ElDiabloConCaca]

Command-control-option-8.

Or System Preferences > Universal Access > Seeing > Display: Black on White

 

[pixmaniowa]

Command-control-option-8.

Or System Preferences > Universal Access > Seeing > Display: Black on White

Thank you! That did it.