HDMI output does not work.

My laptop crashed and had to re-install Windows Vista on it after which I upgraded to Windows 7 Home Premium. Everything works perfectly fine, but when I want to connect the HDMI cable to my LCD it does not work (it used to before). I checked the Device Manager where everything is in order (no exclamation marks or missing driver signs). Any ideas as of why this is happening?
Erwin KrischAsked:
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CyruzQConnect With a Mentor Commented:
you have installed the correct driver for your graphics card? not the default windows one - Had the same error. and it was resolved bye downloading the latest graphics driver from the manufacturer's website
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rindiCommented:
If your GPU is an NVidia or AMD card make sure you install the manufacturer's drivers for it. Both include a utility with which you can set how/what output should be used etc.

Also right click your desktop and select "Screen Resolution". Also here you should be able to define how you want to use which output...
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