[galaxy-dev] Error downloading output file from Galaxy

Hello all - I'm working on a tool for Galaxy that generates an output file. I am able to view the file without issue in Galaxy itself, but when I click on the "Download" icon, the History sidebar produces the following error message: "Unable to remove temporary library download archive and directory" Checking the log files, I see the following entry: galaxy.web.controllers.dataset ERROR 2012-01-17 23:14:05,599 Unable to remove temporary library download archive and directory Traceback (most recent call last): File "/n/galaxy/www/galaxy/lib/galaxy/web/controllers/dataset.py", line 284, in archive_composite_dataset os.rmdir( tmpd ) OSError: [Errno 39] Directory not empty: './database/tmp/tmprofQCp' Listing the contents on the referenced directory shows it to be empty: $ ls -la database/tmp/tmprofQCp total 16 drwx------ 2 galaxy galaxy_lab 1024 2012-01-17 23:14 . drwxrwx--- 8 galaxy galaxy_lab 1024 2012-01-17 23:14 .. Does anyone have any ideas as to what might be happening? Thank you! Cory