when I went to use my 1,1 MP running elcap this morning, I got an unresponsive black screen. Then when I went to reboot, I got no chime + black screen. At this point I reset SMC from which I did got a chime but then it just cycles over & over. This is where I'm at now. Steps taken so far include: SMC reset Lobo reset Ram dimm & card reseat Monitor test (OK with my powerbook) GPU reseat GPU new PCIe slot LED test button (located in ram bay) showed no CPU/Sleep warning LEDs. power and trickle were on as the computer was cycling. So at this point, I'm sorta stumped so thought Id put it out to you guys for thoughts. I thought that as this is a hackered elcap install on a 1,1, that a corrupted file of some sort is causing it to hang and reboot (has been solid for the past 5 months) but am at a loss as to how to get the cdrom door open to install a more appropriate OS like SL or Lion. It is unresponsive via the keyboard. Any thoughts on how to proceed? Thanks!