Kept messing with it, and stumbled on the solution, so wanted to post so no one has to bother working on it, and in case someone else has the same problem.
Just out of the blue, I started opening CD trays to see if I had a bum disk possible interferring in preparation for possilbly booting from a windows disk.
AND, the dvd drive would not open...I opened the tray using the manual over-ride method (poking a tiny screwdriver in the emergency release hole on the face of the dvd drive).
It popped open, I removed the disk, closed the tray manually, and the system booted right up.
It seems the DVD drive had failed, and having the disk in the bad drive stopped the boot.
Luckily i have a CD burner as a backup drive.
Anyway, all is well now.
