by Beau Sanders.
I just heard back from my ISP. They found these two messages in their Apache logs:
[Wed Dec 26 16:32:03.670959 2012] [cgi:error] [pid 11326] [client 96.37.233.136:2046] End of script output before headers: restore.php, referer: https://moodle.beausanders.org/moodle2/backup/restore.php
[Wed Dec 26 16:31:04.558830 2012] [cgi:error] [pid 11326] [client 96.37.233.136:2046] AH01215: (moodle1) no handler attached /MOODLE_BACKUP/COURSE/BLOCKS/BLOCK/ADMIN, referer: https://moodle.beausanders.org/moodle2/backup/restore.php
Please let me know if this helps troubleshoot this issue. Thanks again for your help.
-Beau