"Error connecting to GPIB driver or device"

Hello all,

This is the first posting I do on this forum, so please be forbearing, if I do mistakes.

Now my problem:

I am Using the NI USB2GPIB-Adaptor and want to communicate with any GPIB-Device by using the Simple GPIB.vi out of the NI-Example VIs.

Starting the VI with the correct GPIB-Adress of the Device occurs in an Error:

My Settings of the GPIB Adaptor are these:

Can anyone explaine, why in MAX the communication runs:

but not in the VI. In the VI I get the Error flag, when I try to use the GPIB write function (Error bit 15 is set to 1).

Can anyone please help me?

Kind regards from good old germany,

z