Club-3D Ati Radeon Hd 7770 is not outputting HDMI-signal

[Grandi]

Hi
I got a new graphics card when my HD 5670 was not good enough for gaming.
(Now: Club-3D's HD 7770 1gHz edition)
When i first installed the card it wasnt giving any signal, and i thought that the issue was with my monitor. Later on i tried RGB-cable and it worked!
I wanted to know how to fix my HDMI-signal.
Any help =P?
(PS. Ive tested the cable AND the slot with both my laptop and Xbox 360, so its with the monitor.)

 

[scout_03]

since this is a amd check your settings in ccc panel for hdmi ,did you install all the driver for her a windows update would be usefull.