Hello again Koulae,
Since the screen turns black when the display is moved, I suspect the display cable is loose or damaged. To remedy this, I recommend replacing the Display Panel Cable Assembly if your computer is out of warranty. The part number you will need to identify the cable is 687718-001 (according to the Maintenance and Service Guide on page 75 and 76).
If you computer is in warranty, please call our technical support at 1-800-474-6836. If you live outside the US/Canada Region please click the link below to get the support number for your region.
http://www.hp.com/cgi-bin/hpsupport/index.pl
I hope this helps!
Regards
