I don't have a frame yet but do a lot of reading about them. :-) Join the yahoo grace frame group and do a search for this problem. One solution was buying inexpensive stainless steel rods and laying them in the groove where the old track was. Since I don't have a frame it was hard for me to visualize all this, but those having troubles with the old track seemed very pleased with this modification. I hope to find a used frame at the right price someday and had this "filed" away.