Can't save new Office file to Docs & Media from Office program

• Type: Regression Bug
• Status: Closed
• Resolution: Inactive
• Affects Version/s: 6.1.20 EE GA2
• Fix Version/s: None
• Component/s: Documents & Media, Open Social, User Management, User Management > Roles, WebDAV access, ~ [Archived] Social Networking
• Labels: None
• Environment: Windows 7; MS Office 2010; Liferay portal 6.1.20-ee-ga2 (with default db)
• Epic/Theme:
  • Platform
• Fix Priority: 4

Steps to Reproduce:
1. Open portal & MS Word
2. Create new file in Word
3. Save & Send to -> Save to SharePoint -> Browse for location
4. Enter "http://localhost:8080/sharepoint/" in the File name field.
5. Login (test/test)
6. Navigate to location: sharepoint on localhost -> guest -> document_library
7. Save the file.

Error msg: "Upload Failed You do not have sufficient permissions to upload your changes."