Thanks Richard
email and instructions received -
Just re-built the Mac with the default Disk image I use and then installed the drivers and updated version of catalyst...... Tested with all 4 inputs - all works fine... I'm impressed to see 4 inputs working well on our DP G5 macs.
For reference - this is a 2.7G DP G5 with 1G Ram and an ATI X800 graphics card. - seems to work fine - cant see any tearing or any image issues at all.
Cheers
Simon