Update:
My daughter finished quilting her quilt. I have been sick about the Frixion pen marks I wrote all over the quilt top, so early this morning I got up and steamed it.
VOILA!!! The marks came out!! I mean EVERYTHING.
In retrospect, I think that perhaps I tried steaming out those marks too soon after I put them on the quilt top. Every other time I used the pen, I only steamed them out after the quilting was done, which was several DAYS later.
This time, out of fear, I tried steaming them out only a few HOURS after I marked the quilt. Apparently, that was too soon. Lesson: Let it cure for a bit and THEN steam the marks out.
WAS I THANKFUL!!!! (And so was she!)
BethMI