I get the endless loop and no files in my drop box folder:
23:02:16: Uploading D:\Hosting\6273691\html/wp-content\backups\wpb2d-backup-log.txt.
23:02:16: A total of 19MB of memory was used to complete this backup.
23:02:16: Backup complete.
23:02:16: A total of 0 files were processed.
23:02:16: Backing up WordPress path at (D:\Hosting\6273691\html/).
23:02:16: Creating SQL backup of your WordPress plugins.
23:02:15: Creating SQL backup of your WordPress core.
23:02:13: There has been no backup activity for a long time. Attempting to resume the backup.
22:55:57: Uploading D:\Hosting\6273691\html/wp-content\backups\wpb2d-backup-log.txt.
22:55:57: A total of 19MB of memory was used to complete this backup.
22:55:57: Backup complete.
22:55:57: A total of 0 files were processed.
22:55:57: Backing up WordPress path at (D:\Hosting\6273691\html/).
22:55:57: Creating SQL backup of your WordPress plugins.
22:55:57: Creating SQL backup of your WordPress core.
22:55:37: Backup started on Wednesday January 30, 2013.
Can you elaborate on what PHP file to edit and where it can be found?