I’ve had the same problem; i deactivated all the plugins but it didn’t work.I think i did it al: desactivating plugins, upgrading, unistalling, reinstalling nextGen galley and still can’t drag and drop.
Before giving up a tried one last thing: changing my theme (it was the last thing because i’ve invested many time changing it); well, that worked! I’m at this moment draggin my gallerys into new albums. Later i’ll revert to my previous theme hoping the galley works fine. If i have success i’m thinking of creating a custom “under building” just to use when i need to upload photos and change albums; stop using nextGen is not an option!
Ps: Sorry my english…
