v.digit problem with Altek Datatab (help)

[Doug Youngs]

When I enter a digitizing session, digit seems to have some problems
communicating with the digitizer (Altek Datatab AC31).  After I escape
from the registration points screen and enter the map registration
screen, I get several beeping errors and a garbled screen. I am able
to successfully enter four points, get a residual and go on to the
main digit menu.

Do I have something set incorrectly ??

thanks in advance !

D. Youngs
Advanced Sciences
Las Cruces, NM