I have a big problem with the PMDG 777, when I want to open a door, it opens automatically but the other arm themselves, and thus prevents me to open the other door or close the opened. PLEASE HELP ME

What do you mean "when I want to open a door, it opens automatically"?

When I open a door, it opens, but the other is blocked, Armed position.

My Problem, 0:24
http://www.youtube.com/watch?v=iWcvbRLqXE4

I think it's because your viewpoint is in the headrest - move the view forward and it will work. 

No, I did, but its not working. I also used the CDU independently with Shift 2 but its not working, so it is not a problem of viewpoint

No, I did, but its not working. I also used the CDU independently with Shift 2 but its not working, so it is not a problem of viewpoint

 

What, none of the switches/buttons in the VC work at all - or just the doors?

No, just the door, the rest works fine.
Maybe Fsuipc no? 
Fsuipc is not installed on my pc, do you think it can be the cause of my problem?

No, just the door, the rest works fine.

Maybe Fsuipc no? 

Fsuipc is not installed on my pc, do you think it can be the cause of my problem?

 

Are you running GROUND OPERATIONS when trying to move the doors, as I think running it locks you out from manually opening the doors (as the rest of the crew manages it)

I use Gsx and AES, for the cargo door no probleme. But for the L1 to L4 and R1 to R4 it's blocked.

I too use GSX and every door that I've asked to be opened has done so.

Here's an idea - are you trying to close them with the engines running?