Windows 7 computer screen turning off

roman12345

New Member
i had bought a PCI- HDMI cable recently
to see a movies from my computer into my tv
and i have 2 problems.
1) i have awful noise when i turning on my tv. the only way i could handle the problem is to put on the TV mute.
can it be a problem on the TV or on the cable?
2)when i use XP windows i can see both (tv screen and computer screen)
but when i'm using windows 7 i can see just 1 screen. it is just the tv. if i'm trying to use both, my computer screen turning off and i see just the tv screen,and to see the computer screen over again i would have to disconnect the HDMI cable.
what should i do to see the windows at the both screens?
maybe can i use some software to makes things easier?

regards roman
 
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