is it just the vinyl or the actual backer board?
my vinyl came off. i had to pull the backer board down carefully and restrech the vinvl. GW only left about 1/2 inch or so overlap which was defintley not sufficient. I got GW to send me the 2 sided mounting tape to reattach the backer board. if you pull down the board and the vinyl is stretched and secured with Gorilla tape, you have my boat.
good luck, ron