My nVidia GeForce 8400 GS is seen by the device manager and seems to be working, but it doesn't seem to transmit video signal.
I just put a fresh installation of Windows 7 on my PC, I have the latest drivers, and the graphics card worked with Windows XP before I changed the OS. I am currently working off of the on-board graphics via VGA, but when I try to plug my monitor into the nVidia card with the DVI (same monitor, different source), the "Screen Resolution" window doesn't recognize the 2nd input. I also cannot get any signal from the card if I boot up with either cables plugged in.
I don't see anything in the device manager or in the HWiNFO32 program I have that throws any red flags. It appears to be working fine. And BIOS doesn't have any settings that should be interfering with the card working properly...
I'm pretty tech-savvy when it comes to computers, but I'm still learning Windows 7 (as opposed to my vast experience with XP). Am I missing something? Maybe the card went bad about the same time I installed Windows 7? Help would be greatly appreciated!