Hey, still have the same problem. thought I'd try back here. The integreated VGA works fine, but DVI wont. The graphics card is DVI only.

I see this option for similar HP models:

1.Disable the onboard graphics. Turn your computer on and log on using Safe Mode. You can do this by pressing F8 repeatedly during boot up. You should come to a list of options; highlight Safe Mode using the up and down buttons, and press 'Enter' to select.

2.Right click on My Computer and select Properties.

3.Select the Advanced tab, and click on Device Manager.

4.Click on the '+' by the picture of a monitor. It should pull up your graphics device (something like Intel Integrated Graphics).

5.Right click on the device for your onboard graphics.Disable it, don't uninstall it; otherwise, this will cause you a world of trouble.

6.Log off, and power your computer off.

7.Remove the case cover and insert the new card in an empty slot.

8.Plug your monitor cable into the new card, and when you log on, it should run on low resolution until the driver is installed. It should find the new hardware, and from here, follow the graphics card installation manual. Sometimes it has programs that install the driver and not the Found New Hardware Wizard.

No luck, nothing changed. =(

Any additional help?

All I can suggest is Google:

vga works dvi does not - Google Search