Cannot run phoenix on linux opensuse 13.1 kde
 

Hi, I'm using opensuse 13.1 with KDE 64bit.
I followed a guide, so i already have the link to lp36 in my d_priv1 directory.
When i run phoenix for linux from console (using ./pc) i get this message "no visuals of specified class: 3" but it runs anyway, but when I try to run VR editor it opens a black window which disappear suddently.
Another strange thing is that if I try to run phoenix as su (using sudo ./pc) I get this message on console "Could not Open X Display" and now it doesn't start at all.
At this point I tried to run directly VReditor (using ./runvre) and it this case if i run it as normal user:
--> it appear and suddently disappear a black window and on the console i get these messages "Allocating F( 2000000) for Satellite", "Allocating NAMPAT( 5000) for Satellite",
"no visuals of specified class: 3", "Trying to continue";
if i run it with sudo:
--> I get "Allocating F( 2000000) for Satellite", "Allocating NAMPAT( 5000) for Satellite", "Could not Open X Display" but i don't get the black window

Can anyone help me? Thanks