Thank you for your feedback. There should be a bead of silicone down the center of the wall profile where it attaches to the wall. This should prevent any movement of the wall profile. Please make sure that this step was not skipped in your installation. If you have any other questions, please contact a DreamLine PreSales Consultant at 866-282-8413. We are available 9am-6pm EST, Monday through Friday and will be happy to help you choose the perfect shower door for your space. You may also send an email to support@dreamline.com. Thank you for considering DreamLine!