My company is evaluating Box.com as a file server replacement. It's file locking behavior for concurrent access to files seems incomplete. Specifically, files are not locked* (either exclusive or read-only) when they are being edited by Office or similar programs. This inevitably results in multiple versions of documents as concurrent access results in change conflicts.

*The exception is when the file is edited using Zoho Docs - perhaps other web-based office suites as well. Box provides multiple options for editing documents, including Google Docs, a local copy of Office or similar, Zoho Docs and others.

If you are using Box how have you managed or worked around this behavior?