2 Plugable 2.0 units having trouble with consistancy using the same netbook at home and office.

I just purchased a second plugable 2.0. I am using the original that was used with my netbook at home which I took to my office to use with my netbook there. The new one is being used at home on my netbook when at home. When at the office the plugable has toruble with the resolution and shows 3 screens when trying to change the resolution. And then sometimes the screen just shuts down. Is there something that can be done so that both systems work equally. The new pulgable still works well with the netbook at home, it is the application at the office that is causing trouble. HELP!