Hi, Stefan,
If you read the message about ALTEK AC31 problems that I sent out you
may get some idea. I am trying to use ALTEK AC31 with grass4.1 patch3 and
have the same problem as you have. Could you let me know what OS and hardware
you are using? Let's work together.
PK Lin
E-mail: pklin@cerf.net
Tel: (617)942-1655