I want to connect a second VGA monitor to a Compaq Presario CQ5320F running Windows 7. I have tried using an old PCI graphics card (ATI Mach 64) that I used on my old Win XP and Win 98 machines. This works on the CQ5320F when designated as the primary adapter in BIOS -- but the onboard adapter (NVIDIA GeForce 6150SE nForce 430) stops working. Alternatively, if the onboard adapter is designated as the primary it works, but the ATI card does not. In this case Device Manager indicates that the ATI card is a Standard VGA Adapter and that the device "cannot be started". The driver is identified as vgapnp.sys.
I presume that either the driver for this card is inappropriate with Windows 7 or that the ATI card is incompatible with either Win 7 or the onboard adapter.
Can anyone suggest a driver which might work with this card (the driver I have on CD for the ATI is not accepted by Win 7 and ATI does not admit to having an update)? Alternatively, can anyone suggest a graphics adapter card (PCI, PCIex1, or PCIex16) with a VGA output which is compatible with Win 7 & and the onboard adapter? I am not a gamer, so what I am looking for is an inexpensive graphics card to just drive my second monitor and extend my desktop space.