Hi, welcome to the forum !
2 of the most frequent reasons would be:
1. You forgot to keep Func/Set pressed while pressing Display
2. Your ver.req has a wrong name, please verify A) thats a Q there at the end,
and B) (if using Windows) make sure M$ did not secretly attach a .txt behind the name
if you need more help on 2. feel free to ask
(hey, i've no idea how comfortable you are with computers)