I tried the Block Butler once, and had the same problem. Their "solution" was to spray it with water, because it needed humidity. Well, even that didn't help, and I got tired of arranging all my blocks only to have them on the floor with in minutes of walking away from it. Even after calling them to complain that their product didn't work as advertized, they did nothing to fix the problem.
I have one wall that has nothing on it, so I put some flannel on that wall, and it is now my design wall. It isn't close to my machine, but it was the only place in the house that would work. When I'm not working on a quilt top, I usually have an extra top that hasn't been quilted yet, hanging up there, just so I don't have the plain flannel with all the threads on it to look at.
Diane in Colorado Springs