Changing filenames in state files.
This issue was created automatically from an original Mantis Issue. Further discussion may take place here.
When state files are loaded, if data filenames are no longer valid then paraview raises errors. Only solution is to manually edit the file.
Two alternatives: 1> Popup a dialog showing all filenames in the state, letting the user to change any. 2> test is all referred files are valid, if not then popup a dialog allowing the user to change it.