Please follow the instructions as below to install the driver.(Win XP and POSReady 2009)

i)   Install the Microsoft hotfix KB959252
ii)  Install the 2nd VGA Port Driver (Version: 10.19.0827.0159)
iii) Plug in the 2nd VGA Port Card

Please follow the instructions as below to install the driver.(Win 7)

i)  Install the 2nd VGA Port Driver (Version: 10.19.0827.0159)
ii) Plug in the 2nd VGA Port Card