XDIGIT display problem

[PoKung Lin]

Dear grass users and programmers:

When I run xdigit session I couldn't see anything displayed on its graphic
 window. However,  if I save the edited version of the map, I could 
display it correctly with d.vect.  Anybody there has faced this problem 
before? Or any expert knows how to fix it, Please let me know. 
I'll very appreciate.

        Thank you in advance

        PK Lin 
        E-mail: pklin at cerf.net
        Tel: (617)942-1655