Cadence Tool Disaster

Hello All,
I am trying to use cadence silicon ensemble via doing an ssh to one of
our engineering school machines through cygwin. However when I try to
invoke
>seultra&
I get the folowing error

***********
CADENCE Program Disaster:
Pseudo color graphics card not detected.
Session aborts.
***********

[1] Exit 1 seultra


I was wondering as to what the problem was and if there was some
solution to it.

Thanks,
Fazela

.