Can I use 2 monitors as DUAL Display (simultaneously) on Asus M2A-VM or M2N-VM HDMI Motherboards?

Hi, I wish to know if I can use dual diplay D-Sub + DVI-D together on any of this motherboard Asus M2N-VM or Asus M2A-VM HDMI. Some one told me that only one display will work at a time and not dual. Please confirm if anyone used this motherboard with dual display or similar. Thanks for the help!