I suppose i COULD pull the CD-ROM out of my Performa 550 and try it but i just HATE pulling that plastic box apart
Just the little front plastic bezel has to come off. Insert a screw driver into the two little holes underneath and then I think you push up and pry off. The CD-ROM slides out easily.
Well Eureka and all, it actually was the CD-ROM drive. I put the other one in and...problem solved.
I guess the controller board on the drive is zapped. Odd how the door still works perfectly, even it uses a controller signal.
Oh well, thanks fellas.