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Monitor gets no signal

Guayaco36, on Apr 20, 2009 2:53:36 pm BST 
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Hello,

I really need help with my problem:

I have my new Intel i7 920 with ASUS P6T V2 Deluxe, ATI HD 4830, I installed Windows Vista 64bit and I have it connected to my Samsung 46" LCD LNA850.....it works great unfortunately is acting a little weird. The only way I get it to turn it on is to unplug the power cord from the back and plugged it back in.....if I leave the power cord connected to the power supply my screen will not get signal.....but when I unplug it from the back of the PSU and then plug it back in it works! So weird......I tested my electricity and it is grounded so that's not the problem. What can be causing the problem...? I have it connected with my HDMI cable but I also have tried VGA and it doesn't help. I have tried a regular 19" LCD and it still gives me the same problem....Anyone out there please help......

Note: I switched my Video cards and same problem.....why why!!! The only way for me to use my computer is to manually disconnect the PSU power cord from the back.....I really need someone's wisdom....

Configuration: Windows Vista 64bit
Firefox 3.0.5

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