Are you connecting both cables at the same time?
graphic card : geforce x260
system : windows vista (32 bit)
monitor : samsung syncmaster 2333
i downloaded the latest graphic driver .. when i open nvidia control panel the monitor shutdown and open repeatedly with sound like the system can't recognize monitor and when i install the monitor driver it looks like the system read one monitor as two monitors .. and this happens with all the drivers (old & new) and with the two cables (manual&digital)
so what can i do ??