ORAC -- No joy, I'm afraid. Worth a try !
NAC Inc -- I'll be back (screwdriver job, plus clear the desk first).
TCS -- No other video card, I'm afraid. As per a previous message...."ATI Radeon 7500LE 128M SDR TVO fitted to AGP slot. (no other output for monitor but this one)".
This means I'm stuck with the Radeon.