Missing Data

[Camm29]

Help !

I'm using

Open file "COM1:"
read from file until empty
put it into Received
Close file "COM1:"

If the hardware i'm talking to on RS232 is set to echo sent commands it works fine and i get all the data.

If i set the hardware not to echo sent commands then most of the data is missing ?

example.

if i send "ATZ" to the Hardware with echo on i receive 

ATZ
HELLO
>

if i send "ATZ" to the Hardware with echo off i receive

>


Help , the data is there but goes missing in Revolution.