How can I delete a picture from an album? I have the pop up screen with delete option/trash bin but it does not work

Delete a picture from an Album?

Or

Delete a picture from the Library?

Best to give us the exact wording of that pop up screen

do delete a photo form an album select it and presss delete

to delete a photo from the library while viewing in an album select the photo and depress the command key and press delete and then empty the iPhoto trash

All iPhoto keyboard shortcuts are here

LN

Deleting Photos from an iPhoto Library:

1 - from an Event or Photos mode: select the photo(s) and use the Delete key to move the photos to the trash bin. Then empty the iPhoto Trash bin as follows:

2 - from an album, smart album, book, slideshow, card, etc.: select the photo(s) and use the key combination of Command+Option+Delete to move the photos to the trash bin. Then empty the trash bin as above.

OT