Installed new graphics card, now original woulnt work.?

I needed an HDMI on my desktop so I put a "GEFORCE GT 610" graphics card in it. After installing it into an open slot my original VGA will not work. Now my VGA monitor will not connect (new or old port) so i cant even install the software for the new card. What happened and what do I need to do to... show more I needed an HDMI on my desktop so I put a "GEFORCE GT 610" graphics card in it. After installing it into an open slot my original VGA will not work. Now my VGA monitor will not connect (new or old port) so i cant even install the software for the new card.

What happened and what do I need to do to make it work?
The desktop is an HP Pavilion p6-2120 (Brand New) with windows 7
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