Hi Sheree, and welcome to the forum. I'm not sure what Jackie01 is trying to tell you but as it is her first post to the forum we'll just wait and see.
I have never had the problem but I imagine some sort of plastic welding or gluing a patch of screen over the tear would repair it. Contact a plastic repair company from the yellow pages for advice if you don't want to try it yourself. Maybe a photo of the tear would get you a bit better advice from members.
Would love to hear about your trip around the block and see some pix as well. :yo: