i was wondering if anyone has ever had this problem. unfortunatly i am not one of the lucky ones to have that nice sewing room. i have to cut out on my kitchen or dinning room table and put my sewing machine on the table also. but i have noticed that when i cut, i seem to have more slipping with the ruler or fabric. but if i put both of my knees on a chair i seem to get a better grip on things. someone told me that it looks like i may need to use a shorter table. although i don't think my tables are that tall, i have noticed it seems to be a little easier and sore on the knees after awhile.