I'm not very hardware savvy so I'll TRY to explain this as best as I can.

I have an old monitor that I use with my desktop PC. I was using a VGA cable, with a DVI adapter, to plug the monitor into my onboard graphics card (the horizontal DVI slot). Today I bought a new monitor. It has both a VGA and HDMI slot. When I try to connect the new monitor in the same way (VGA with DVI adapter) I get the "Check Signal Cable" (analog) MESSAGE bouncing all over my screen. I can hear the PC starting, but all I see is this message. I tried with the HDMI cable too, but GOT the same result. On the flipside, when I plug the VGA cable into the vertical VGA slot the monitor works fine, as in I can watch videos and browse the net without issues, but I cannot get any video games to work.

I figured it may be an issue with the monitor itself so I plugged my old monitor again just to test things out, and now even that won't work. The VGA with DVI adapter method gets me the same "Check Signal Cable" message.

It's worth mentioning my OS is Windows 7 (64 bit), and my graphics card is Intel Core i5-2400. Also, the monitor came with a CD so I installed a driver for it off of that. I've check to see if my graphics drivers are up to date and they seem to be.

I hope I explained this well. Does anyone have any ideas how to fix this?Since you get the same issue using the cable/adapter with either monitor, I would suspect SOMETHING happened with either the cable or the adapter, perhaps a bent or corroded pin.  Any chance that you could try another cable or adapter?Hi, strollin. Thank you for the response.

I just tried what you suggested and bought a new cable and adapter. Didn't fix the issue, sadly. When I plug the monitor via the VGA cable with DVI adapter option I no longer get the "Check Signal Cable" (analog) message, but the screen stays black, even though the OS itself is running. So then I tried via the VGA cable only and still cannot get any games to run (I get a message that there is no DirectX 11 support and/or that the GPU does not meet the minimum requirements), but there's also a certain flickering on the screen too, which isn't there when I'm using my old VGA cable.Issue has now been resolved. It turned out the graphics card needed to be reseated.