problem with cadence in linux

[hazemafify]

i installed Cadence tools in my /usr/local correctly and it run but i installed linux again and when define environment variable to make Cadence work it give me error.
the error is " *ERROR* Failed to find either 24-bit TrueColor or 8-bit PseudoColor Visual.
*WARNING* Failed to find either 24-bit TrueColor or 8-pbit PseudoColor Visual.
"
plz help me

 

[elbadry]

I think this is a problem with the VGA card. You need to increase the scren resolution into 24 bit. This can be done by GUI ( system tools --> display ) [ i am not quite sure of this but u can find display related menus in the redhat's start menu ]

 

[mydreamhouse]

that the display setting
this problem is common when a VNC is used

 

[Hughes]

I have ever installed Mandrake on several PCs. Sometimes it is configured with 24-bit color automatically. Sometimes it is configured with 16-bit color and can't be changed to 24-bit by GUI. But modifying /etch/X11/XFree86config-4 can sometimes solve the problem.
Just for you reference.