added graphics card with dual monitor

Just installed a new geforce 6300 card in gateway 5088. Want to use dual monitors, but after installing the new card the windows will not find the original card and monitor.

Any suggestions for correcting this problem.

Q

 

http://en.wikipedia.org/wiki/Dual_monitor

"A lot of people see dual-screen setups and they think that it's hard to do - it's really not. First of all you need a dual-monitor video card. Do not try to use two single-port video cards - you will probably have IRQ conflicts that will keep you from using both at the same time - special software is bundled with all dual-port video cards that allows both ports to peacefully co-exist"

http://ezinearticles.com/?Setting-Up-Your-PC-for-Dual-monitors:-Its-Easier-Than-You-Think&id=80339