Dear Paul,
I have fixed the problem that I described to you. You were right, It was
the software problem rather than hardware. The problem, which we have spent
so much time on it,  is simple, it is because of windows SMARTDRV using the
memory area cnflicted with Comms programs. So far I have suffered this
problem using Telix 3.0 and Procomm for Windows. Anyway, that night it
happened again, and at that monment I recognized I hadn't finished the home
work for next day, so I didn't dial your number again.
Thank you very much for your help, see you some times
John

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