Malosh:
I'm happy you're having some success.
So, here's my take:
a) Your MAX settings are good. No need to mess with them or re-install IVI Compliance Package.
b) Your specific driver works. No need to re-install it.
c) I think the issue is that your class driver thinks it is communicating with a single-channel Tektronix function generator. In your screen shots you have a False wired into the Initialize VI for Identification Query. This means the initialize routine cannot determine if you are communicating with a single channel model or a dual channel model. The specific driver is probably set up to default to a single channel model. So, Channel 2 is not valid. To fix this, enable the Identification Query when connected with a live instrument. Alternatively, you can use Initialize with Options and specify the model you are using. You'll need to read the help to determine the exact syntax for setting this. I believe this can also be set in MAX too.
The simpliest solution is to enable ID Query...
