BUG: Deleting Mails from any folder makes a copy of the mail in the Trash

[mibagict]

Hello

If I try to delete a message from any folder, the following occurs:

1.) If I delete a message from the Inbox
2.) The message is removed from the Inbox
3.) The message is in the Trash
4.) I then go back to the Inbox and the message is back in the Inbox AND stays in the Trash!
   
And I can't empty the Trash. After clicking on empty trash, the Trash folder is blank until I refresh it.
After that, all the messages are back.

I've tried every TRUE/FALSE combination for the following switches in main.inc.php:

- skip_deleted
- read_when_deleted
- flag_for_deletion

My environment:

- IIS6
- PHP 4.4.7
- RoundCube rc1

I haven't found anything in the forum about this problem.

Thanks and greetings

mibagict