Hi, I bought a broken LCD 20" intel iMac and have been trying to get this going. I replaced the LCD and get no video. imac boots fine and displays great on an external display. I have tried 2 LCD's, 2 cables, 2 inverters with no luck. I have reset PRAM, replaced the CMOS battery with a new one, and reseated the ram. This imac had what looked like a fresh install of Mac OS X. I ran all the updates and brought the firmware current. Only other thing I have not tried yet is to boot from CD. Any suggestions?