If you know more about old #macosx and #mac than me, please read.

I have 2 Mac Mini G4 that I cannot boot on the DVD provided with the machines

I can enter *multi-boot* by pressing *ALT* after the chime. Then I see my DVD listed as boot device. But I cannot select them as no button of the mouse has any effect. I can move the pointer though. I cannot use the keyboard for anything else than *ENTER* that will boot the HDD and *SPACE* that refreshes. So I cannot enter OpenFirmware.

Could it be because I am using USB PC keyboard and mouse?

#retrocomputing