One random day I tried to start my 360, and it showed a red light in the middle of the button and showed me error code 82. After experimenting, I noticed it no longer had a red light when the VGA HD cable was unplugged from the console. So I figured it could be a cable break somewhere. Before wanting to try my littlebrother's VGA HD cable, I did basic troubleshooting, and after unplugging the VGA cable from my monitor, and plugging it back in, it launches just fine.
But this just confuses me even more and I'd like to know what the problem was, so I might be able to fix it in the future. If it had something to do with the VGA display cable not connecting with the monitor properly, how on Earth could the console show me an error code? I don't touch the cables either, so I couldn't have caused the display cable to dislodge from the port, in which case it shouldn't have been able to show the error code regardless..
What could be wrong that can be fixed by simply unplugging and replugging the VGA cable into the monitor? And why, if the connection between the monitor and console was at fault, did it still manage to show me the error code?