Getting error "The path is not of a legal form" when trying to import after moving a network drive (4311011)

When I click on Tools | Import | Import Wizard I receive an exception about a path not being of a legal form. This has happened since one of the network drives was been moved and now has a different path and is mapped to a new drive letter.
See error message below:

Exception: System.ArgumentException
Message  : The path is not of a legal form.
Stack Trace:
   at System.IO.Path.NormalizePath(String path, Boolean fullCheck, Int32 maxPathLength)
   at System.IO.Path.GetFullPathInternal(String path)
   at System.IO.DirectoryInfo..ctor(String path)
   at Quest.Toad.ImportExport.ImportFileBrowserControl..ctor()
   at Quest.Toad.ImportExport.ImportWizard.InitializeComponent()
   at Quest.Toad.ImportExport.ImportWizard..ctor(String defaultDBName)
   at Quest.Toad.ImportExport.ImportWizard..ctor()
   at Quest.Toad.ImportExport.ImportWizard.Import()

Correct the 'My Documents' location