My monitor is messing up!

Hello,
for a while now my monitor has randomly gone black for like a second or two. I could live with that, but now it happens more often. Just now it happenes like 5 times in a row, but it went black for a little longer, 3-4 sec each time..And im sick of it..


I have tried using different HDMI cables and that didnt help..

Here is my monitor and it's specs.. I dunno what category to put this in, sorry!

http://reviews.cnet.com/lcd-monitors/samsung-syncmaster...