Can you tell me what is causing my event viewer to periodicaly log the same error? THE source is BITS, the catagory is NONE, the event is 16391 and the description reads: The BITS job is not in a recognized format. It may have been created by a different version of BITS. The job list has been cleared. A search of my machine located a BITS file (version 6.6.2600.1569). Is this serious? Can it be corrected?