Graphics Card issue

Hi there everyone.

Recently purchased a second hand ASUS AH4650 (AGP), and I'm having immense trouble getting it to work. I can only get a picture on VGA (DVI & HDMI both say no signal).

I have the latest drivers installed for the card from the ASUS website.

For information, I'm running Windows 7 Pro 32-bit, attached to a 24" Iiyama ProLite 2473HDS.

If you need any more info, feel free to ask.

Thanks in advance.