Evening all.

So yesterday I tried connecting my Hypp TV STB to my monitor (which only have a vga and dvi port). And then after some googling around the topic, decided to buy HDMI-to-DVI cable from Thundermatch.

And WALLA..
It's worked!

But then, the real problem is, after one hour, the screen goes blank, monitor stated 'No Signal'. Checked all; ok. Then unplug the cable from its sockets and then try to connect it with my pc and other monitor. Still, blank screen.

Thought of maybe the problem is caused by the cable. Went to Thundermatch again, replaced it with a new one and bought some other HDMI-to-DVI cable from another shop; just for assurance.

Went home, test it. Blank screen again. For both cables!

Wasted. Need a solution. Help me please.

*or should I buy RCA-to-VGA instead?