I just installed my retractable screen door.  I love it!  Unfortunately my dog tried to run through the door today.  I was worried about that.  It was easy enough to get back on the track but now it's a little loose at the top.  I got the one that came assembled so that we didn't have to wind the screen in the housing.  Can the screen be wound tighter?  Should I take it back off the track and pull it all the way out and then get it back on the track.  What can I do?  I'm so bummed.  This dog is a disaster as far as how much she's cost me in vet bills and damage.