I have an a1730n that started life running Vista. It is now running 8.1 Update very happily, and is in use every day. It's been running an HP monitor using onboard Nvidia. Recently got a Dell monitor. Tried to run dual monitors. Installed a Nvidia geforce in a PCI slot and plugged in the monitor. When started, monitor and card not seen. Restarted, changed primary monitor in BIOS to PCI, and new card and monitor recognized and installed, however, old one had disappeared. Changed bios to on board as primary and old one works, new one disappeared. Doesn't look like there are any bios updates. Any hope to get this to work?
P.s., switched monitors on video outputs. Monitor position doesn't matter.