I have a 800MHz G4 with a cracked 17" flat panel display. There is a 17" display available from a 1.25 GHz machine. The seller says he thinks it needs a inverter. Can I use the inverter from my cracked display? Where is it located and how is it identified? The 800 MHz machine says it provides 32 MB of VRAM for the display, the 1.25 GHz machine says it provides 64 MB of VRAM. Does this mean these two displays are not exchangable? I have R. and R.'d these screens with success before so I am up to the mechanical challenge. I just don't know about the compatibility and inverter identification. Thank you.