Powering up problem i series 1300

[beowulf177]

Hi all, I have a 1300i ( 1171-5wu ) that will not power up if the battery is in. If the unit is not plugged in it acts as if the battery is dead ( I have two batteries and they both read fine on the volt meter ). If the unit is plugged in the battery light flashes green. If you try to power up ( battery in and power cord plugged in ) it flashed the battery light green, the hard drive light flashes, and the light that looks like a lazy 'Z' in a circle flashes also. It seems to be stuck repeating a step in the very early stage of start up. No beep codes are issued. If you take out the battery it powers up with no problem. Same results with the new battery as with the old. Any ideas?

Thanks
Andy