I encountered an odd issue. In Excel 2007:

1. Create a new document
2. In the Vibe Add-In Ribbon Menu, choose "Save As"
3. Choose the location in a workspace to save
4. The save is successful UNLESS I enter something in the Title or Description property options. If those are NOT blank, then the next dialogue I get is the Groupwise Save As Dialogue which has no option to access my Vibe workspaces in Groupwise. (However, my Vibe workspaces do show up in the Groupwise open file dialogue but I cannot see any files in the Vibe workspaces through the Groupwise open dialogue.)