Second monitor not detecting signal

Hi -

I have an HP Pavilion p6130y Desktop PC with an updated graphics card (AMD Radeon HD 7700 Series).

I was previously able to beautifully run 2 monitors:

HP Pavilion 25bw via HDMI

HP 2311x via DVI

We moved homes a few days ago and when I set backup (only a 5 minute drive away), the second monitor is unable to detect a signal from the PC.  I've tried shutting down and rebooting to no avail.

Please help as I can't funtion without an extended desktop!!!

JB