Have you possibly added any swap files recently? A while ago I tracked a similar problem to an open swap file that shutdown was not releasing before it tried to unmount.
nathan -- Nathan O. Siemers - Transcriptional Profiling, Bioinformatics - Division of Applied Genomics - Bristol-Myers Squibb Pharmaceutical Research Institute - Hopewell Building 3B - P.O. Box 5400, Princeton, NJ 08543-5400 - 609 818-6568 - [EMAIL PROTECTED]
