Dual monitor issues with changing source

After I had updated my drivers ~2 days ago I started experiencing a strange problem with my monitors. After turning them back on one or both of them would say DVI- NO SIGNAL. To attempt to fix this I rolled my drivers back and then updated them through the device manager instead of the GeForce GUI since it was having issues. I have also removed the latest programs that I believe would be causing issues with regards to drivers this being nGlide (A driver wrapper used to run older games meant for 90s era graphics cards). Currently my main monitor (ASUS VG248QE if it matters) is working fine but if I hit the change source button on my second monitor (Samsung SyncMaster 220WM if it matters) to attempt to get it to draw properly, my main monitor will stop drawing and then only if I hit Source and the up arrow button on my second monitor a few times will the main monitor start to draw again. The only thing that I can see on my second monitor is the blue power light flashing in a somewhat random patterns so I have no idea what it is trying to set as the source. I have tried reconnecting both of the monitors to see if there was an issue with connection but they both seem to be fine and when I open the display manager windows is recognizing both of them correctly. If you could offer any advice it would be appreciated. Also if more information is needed please let me know what I should provide.

Thanks in advance

Any reason you are trying to change sources on the monitors? It is best to set the displays in Screen Resolution window. Also set the monitors to DVI (if they are indeed using DVI) once and don't touch them (of course unless you have a different source you have to change to). If you have trouble with this, perhaps disable one display and set the other monitor DVI source and switch back etc. Hope I could be clear.

GokAy said:

Any reason you are trying to change sources on the monitors? It is best to set the displays in Screen Resolution window. Also set the monitors to DVI (if they are indeed using DVI) once and don't touch them (of course unless you have a different source you have to change to). If you have trouble with this, perhaps disable one display and set the other monitor DVI source and switch back etc. Hope I could be clear.

For some reason I was thinking that it was getting sent to some random source and not drawing, what I have gathered is that the monitor itself is dead since when I swapped it out with another one that I had around everything was working fine until the backlight died on the other one that I had. Thanks for the reply though, it seems that I will just need to acquire a new secondary monitor.