Hi Bert.
It could be a couple things. First thing I would do is try updating/reinstalling the printer drivers on those computers. There may be a conflict with the driver that is causing the error. This is fairly easy to do on your own.
The other thing that could be causing the issue is an error with Crystal Reports. This is the program that AC uses to generate the preview window. For this, you would need to reach out to support to help fix it.
