Windows + Led cinema Display. Sound but no image

[zalle]

I'm trying to connect the 27" Led Cinema Display via HDMI or DVI (have both cables), but there is no picture.

I connected the USB cable and I do get sound.

My graphics card is an NVIDIA GT440.

What is happening? Maybe I need to get a Graphics card with a Mini Display Port for it to work?

Thanks

 

[zalle]

I'm trying to connect the 27" Led Cinema Display via HDMI or DVI (have both cables), but there is no picture.

I connected the USB cable and I do get sound.

My graphics card is an NVIDIA GT440.

What is happening? Maybe I need to get a Graphics card with a Mini Display Port for it to work?

Thanks

If someone is looking for this information, I solved my issue.

Bought an HD 7850 Video card with mini display port and everything works, high resolution image, sound, usb, camera, microphone, brightness.