The APQS Millenium I use at work is like that and worse depending on the day. When it quilts, I just don't want to stop...when it doesn't quilt, I might as well leave and try again another day. I've talked to the representative about it and have used other machines, it seems like the problem is most likely the age of our thread combined with in-proper storage. Any chance that could be your problem? Our main "shredders" are King Tut and Rainbow...not the normal for shredding.