Hi all just purchased a refine mh-721 cutter i have a problem with the machine or maybe the software or user

that when i cut a letter for example an "o" the cutter does not compleatly cut the "o" the start and the finnish of the cut do not meet if that makes sense and leaves a small section that did not get cut making weeding very time consuming as i have to finnish the cut manually with a knife i am using windows 2000 OS with artcut software which came with the plotter and the parallel port cable is there any adjustment for this?
Thanks for any help
Cheers Chris