It's a bug of MAX 3.0.2 with Win XP SP1
The solutions is :
Remove all drivers and MAX 3.0.2.
Download the last NI-VISA drivers and install it.
You have the new version of MAX 3.1.1.
Reinstall all drivers and software.
Very simple.
Thanks to the french hot-line.
Stephane Maury
S. Maury
Responsable Technique
Technical Manager