Monitor won't connect to computer

[Bug Me]

Hy there!

I have some serious problem so please help me.

When I turn my computer on then on the monitor appears some square and then goes Analog then digital again analog then digital after while monitor "goes to sleep" and shut off.

Monitor: Samsung 17 '' SyncMaster 731BF

First, I tought : Oh,It's a monitor! So I took another one from my friend and tried on my computer but same results.

Then I tought it's a video card (7600 GT) so I pull her out and put 8600 GTS inside ,guess... same results.

On some advice that I recieved I pulled jumper from my mother board,same result.

I also tried to change cabels,DVI plugs..blabla...but always same result.

From some reason monitor can't connect to computer....

Thx in advance,greetings from Croatia.

[Kevin_gibson]

I'd go for your motherboard. You've replaced the card, you've swapped tested your monitor, you've changed the cables as you've said in your post.

Have your motherboard replaced.

[ismailahmed]

please check your mother board some time mother board also given this prob

[ismailahmed]

please check your mother board some time mother board also given this prob