Gnats 4657: "Save As" gives a bogus error dialog. (Windows Only)
Fix for 5.1 Builds and 5.0.5 (future) Prerel -- November 18, 2008.

The following two methods used to have code to provide a default directory 
if one had not yet been supplied during the current RiverWare session. 
That was redundant with the lower level mechanism, and it was interfering 
with correct operation, resulting in a "bogus" error dialog: 
"Cannot open "" for writing: : The path is null".

   void Workspace::saveAsModel()
   void Workspace::saveAsBaseline()

File changed: Q3GUI/Workspace.cpp

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