I have had this vinyl cutter for a couple of years and it has definently paid itself off, but my problem is...while im cutting, I can only seem to cut one at a time, and maybe sometimes two, and if I cut any more it seems to just cut random lines in the middle of the cut. i dont know why it does this, but it is very annoying and is beginning to cost me from all the screwups its making, its wasting vinyl. Its using a parallel cable and there are no problems in device manager, and the cutter still cuts one good about 50% of the time. But it seems like every other one or so is getting those random lines. Some are usable but some it'll just be cutting a letter and then go off into a random spot and back, and then resume like normal. We've taken apart the plotter and checked all the cables and made sure there wasnt anything loose, and we blew the dust out, and its still having the problem. Whats causing this? Do you think the parallel cable is goin bad? Only reason I think it might be the cable is because its just doing it randomly, so somewhere between the pc and the cutter the data might be getting corrupted and causing it to do random stuff. I dont have another cable to test it with, so thats why I was posting here to make sure what the problem was first. Please help: