Cannot detect 2nd monitor

I set up a new hp PC on Friday and managed to sucessfully transefer everything from my old one which would not work to the new (reconditioned) one. Part of this was setting up UltraMon and using 2 screens again. Everyhing worked beautifully and i was able to work for the remainder of the day.
After coming back in on Monday morning, only one monitor is working and i have spend the last 2 days looking at EVERY support side possible to resolve this issue and to no avail. I have contacted ultramondirectly but that was no help whatsoever.
It has been suggested that i may need another graphics card? If this is the case, how do i get one and fix the issue.
Thank you to anyone who is willingto offer help
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Since the second monitor once worked and now it does not, it can be that either one of the components failed or there is a bad connection. Verify that the connection at port 4 is secure and that the monitor is coming on by trying it on another computer. If both of those is yes, then perhaps the displayport to DVI adapter has failed.
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Hi @Jong2 ,
Thank you for visiting the HP Support Forums and Welcome. I have read about your HP Pavilion 14-n216TX Notebook and not able to connect a Tv Monitor. Here is a document on Windows 7, here for Windows 8 how to connect the TV.
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Cannot detect 2nd monitor

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