I have windows XP and I'm working in a user account daily.
When I shut down Sudoku it says: 'Acces to a file without name denied'
and when I want to start Sudoku after that it won't work at all.
The only option I have is go to my process list and kill the Sud.exe process, then it works next time I start it.
When I login as admin I don't have that problem. Changing the user directories with 'set directories' does not solve the problem.