I washed the board of my first Bondi saturday (the one which was working previously) before discovering that probably both Hard Disks had something wrong, put everything together... and get a blinking file :-/
However i noticed he mouse was acting strangely, so removed it and get :

Put the mouse back, and had a working Imac

Already tried without mouse, and did not work... so probably the hard Disk just needed a quick boot in the G4, the fact is that my non-Apple mouse did not help in the end, but i am pretty happy to get it working.
The HD is from the faulty Bondi, so now i have got 9.2 instead of 9.04, and looking at the files, looks like the previous owner tried a Mac Os X install...don't know what to think about it ( the Imac needs a firmware upgrade to do so)
However i noticed he mouse was acting strangely, so removed it and get :

Put the mouse back, and had a working Imac

Already tried without mouse, and did not work... so probably the hard Disk just needed a quick boot in the G4, the fact is that my non-Apple mouse did not help in the end, but i am pretty happy to get it working.
The HD is from the faulty Bondi, so now i have got 9.2 instead of 9.04, and looking at the files, looks like the previous owner tried a Mac Os X install...don't know what to think about it ( the Imac needs a firmware upgrade to do so)