Sorry it took so long to respond to my own thread, but I have some answers and a new question.
First, after a series or restarts (both the MacPro and the Plasma Screen) I was able to get a picture on the Plasma via HDMI in SD. Unfortunately, sometimes the picture looks like one of the colors (RGB) is missing. This occurs in SD and HD. Everything works as it should, and all of a sudden, the picture is all screwed up.
The solutions I’ve found aren’t great. Sometimes switching between the modes works. For instance, switch between 720P 60 and 720P 59.97 several times and the display is normal. But other times I have to quit and restart FCP. Finally if nothing else works I restart the computer. Obviously, this is not a good situation to be in when you have clients in the room with you, so any help is appreciated.
Here are the results of the EDIO test:
/* Read result 0x0, 0x100 bytes */
/* 0 1 2 3 4 5 6 7 8 9 A B C D E F */
0x00,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x34,0xa9,0x3e,0xa0,0xab,0x03,0x00,0x00,
0x2f,0x10,0x01,0x03,0x80,0x00,0x00,0x78,0x0a,0xda,0xff,0xa3,0x58,0x4a,0xa2,0x29,
0x17,0x49,0x4b,0x21,0x08,0x00,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01,
0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x1d,0x00,0x72,0x51,0xd0,0x1e,0x20,0x6e,0x28,
0x55,0x00,0x9a,0x26,0x53,0x00,0x00,0x1e,0x01,0x1d,0x80,0x18,0x71,0x1c,0x16,0x20,
0x58,0x2c,0x25,0x00,0x9a,0x26,0x53,0x00,0x00,0x9e,0x00,0x00,0x00,0xfc,0x00,0x50,
0x41,0x4e,0x41,0x53,0x4f,0x4e,0x49,0x43,0x2d,0x54,0x56,0x20,0x00,0x00,0x00,0xfd,
0x00,0x30,0x3d,0x1f,0x2d,0x08,0x00,0x0a,0x20,0x20,0x20,0x20,0x20,0x20,0x01,0x95,
0x02,0x03,0x18,0x71,0x48,0x84,0x05,0x13,0x14,0x03,0x02,0x12,0x01,0x23,0x09,0x07,
0x07,0x66,0x03,0x0c,0x00,0x10,0x00,0x80,0x8c,0x0a,0xd0,0x8a,0x20,0xe0,0x2d,0x10,
0x10,0x3e,0x96,0x00,0x9a,0x26,0x53,0x00,0x00,0x18,0x8c,0x0a,0xd0,0x8a,0x20,0xe0,
0x2d,0x10,0x10,0x3e,0x96,0x00,0x33,0x26,0x43,0x00,0x00,0x18,0x8c,0x0a,0xd0,0x90,
0x20,0x40,0x31,0x20,0x0c,0x40,0x55,0x00,0x9a,0x26,0x53,0x00,0x00,0x18,0x01,0x1d,
0x00,0xbc,0x52,0xd0,0x1e,0x20,0xb8,0x28,0x55,0x40,0x9a,0x26,0x53,0x00,0x00,0x1e,
0x01,0x1d,0x80,0xd0,0x72,0x1c,0x16,0x20,0x10,0x2c,0x25,0x80,0x9a,0x26,0x53,0x00,
0x00,0x9e,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x0b,
/* Checksums ok */