Installing Leopard onto my G4 imac

Hi,

I've recently purchased Leopard (family pack) to upgrade the powerbook.

I have a G4 imac and it has plenty of ram and 1ghz. Does anyone know if this will work with Leopard? I put it in and it asks me to shutdown to install the new software but it's been a couple of hours going on the coloured wheel and blue screen (the drive seems to be making the right noises). Would anyone know how long it should take?

They guys at the store insisted that it would work but it seems to be taking a very long time.

Thanks for your help.

Sam

How ong will it take...

Thanks any ideas as to how long this may take?