Using open() under Window 97

[Julien Kahn]

This program run under UNIX
    import string
    tab_line=[]
    # ouverture du fichier
    f=open('sol.txt','r')
    # parcours du fichier
    line=f.readline()
    while line :
         tab_line.append(string.split(line,';'))
         print tab_line[-1]
         line=f.readline()
    f.close()

but under Window, even if the file is in current directory I've got the
fallowing message:
    Traceback (innermost last):
      File "C:\PROGRA~1\PYTHON\TOOLS\IDLE\ScriptBinding.py", line 131, in
run_module_event execfile(filename, mod.__dict__)
      File "C:\Utilisateurs\Julien\CENA\trafic\convertisseur.py", line 8, in
?
      f=open('sol.txt','r')
      IOError: [Errno 2] No such file or directory: 'sol.txt'

Thanks
Julien