How setup Remote Desktop in two monitors

I have a main computer two monitor, and, using Remote Desktop I'm able to use only one monitor in full resolution. How can I setup Remote Desktop sesion to use both monitors from the main computer?
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it depends on your video card...

so you want two remote connections or the same one ?
moralesrdAuthor Commented:
I have a video card that handle monitors, and, both monitors are connected. I can use multiple Remote Desktop sessions, but, the sessions can be used (maximized screen) in just one monitor, I want to use one RD session in two monitors (as usually use my computer).
its only one "window"

make it very wide
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so you want to clone your desktop...

which video card do you have nvidia or ati ?
moralesrdAuthor Commented:
I know that is possible to do it in maximized mode and not expanded because I saw it; but the person using that computer said their IT people did it... and the RD bar at the top screen appears as maximized; I have an nvidia 8800 gts
mcsweenSr. Network AdministratorCommented:
First, make sure you are using remote desktop client 6.0 or higher.
Second, The remote computer must have multiple monitors setup on it as well as the client computer.
Third, When you launch remote desktop you will need the /span switch
Start, Run, mstsc /span

Then connect like you normally would and see how that works for you.

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mcsweenSr. Network AdministratorCommented:
It appears that you might not get what you want from above without split view installed on the remote computer; possibly both
Agree with mcsween.  Make sure you have the latest nvidia drivers.
moralesrdAuthor Commented:
I'm using RDP 7 which includes the option "Use all my monitors for the remote session", which is the same parameter that you provided; I'm using the latest drviers of everything, but, I did not know about the screen limitation's some computers have only one monitor connection, other 4 monitors, other without even a monitor, and my laptop, any of these configuration can reach the setting and resolution of the main computer; so, seems like there is not option for me...
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