Jan,
I'm on J1.7 and the latest php/mysql stacks, using PD2.1.1 and am having the same issue.
My PD Categories are all set up to have the same 3 users assigned to both Upload and Delete rights, for just two categories (All.... and Current Week..... categories) and I have tried both in combinations of making each a root of the other, and both being their own root (no parent in other words) and all combos have no effect.
Frontend upload page, the Select Category dropdown has no categories to select.
Logging in and out has no effect.
Rights to PD Categories overall are Public, and the Files are all set to Registered.
From frontend logged on as superusers - who also happen to be the assigned upload/delete rights to the PD Categories themselves - still cannot see any options in the Select Category dropdown.
Additionally, the menu item itself on the Joomla side is set to Special so that we admin/superusers are the only ones who can get to Uploads.
I believe this would be classified as a conundrum!
Also, we have a lot of files - close to 100, and soon it will be more. They're also large files - maps for Call of Duty 2. So, messing up the current categories and blowing it out of those files so I would have to go into each one to assign them all to the All.... category again would be some really high maintenance I would love to avoid if at all possible......that aside. How do you propose we fix this?
I am very adept at hacking into code.....just aim me and give me the syntax if its needed somewhere. 15+ year IT Jedi vet + 15 J! sites to date from 1.0 to 1.7's and everything in between.
Also, while writing this I had a thought to go run some maintenance optimization's such as clean temp files, fix perms, and also ran a repair and optimze tables (mysql) maintenance tasks. Logged out of the front-end, and back in again, then back to the Upload Files page - and the Select Category dropdown still lists just that - - Select Category - and nothing else.
I am looking forward to working with you on this.
Thank you very much in advance!
Regards,
[TFC]Sevendust