Hi Jeff,
I assume you are cutting via VPM, so go to Queue > Manage Queues find the queue you are cutting to, what port is selected for that queue? (You can expand the port field to see the whole name if needed). Click Close.
Try and send a cut job to the Graphtec, it will error, then right click the job and choose:
Properties > Show For Page Output > Other > Log
Select the final 15 (ish) lines of the log and paste them in a reply along with the port from above. I will then have a better idea of what is going wrong.