CM19A stopped working after installing AHP software

[rickipine]

I use the same computer on 2 different systems One is AHP with a CM15 and the other is is a different location where I use the CM19A and leave the laptop hooked up......not sure whats gone wrong

[Dan Lawrence]

What version of AHP on each machine?  Are both using the same .ahx file?   Which one has the CM15A and which one has the CM19?