function loadUserFile()
    User = {} -- Not sure if you define that anywhere else.
    local i = 1
    print("Checking  "..sPasswdPath.." exists...")
    if fs.exists(sPasswdPath) then
        file = io.open(sPasswdPath, "r")
        print ("Loading file....")
        while true do
        User[i] = file:read()
        if User[i] == nil then i = i - 1 break end
        print ("User "..i..":  "..User[i])
        i = i + 1
        end
    else
    print "Error: Password file doesn't exist."
    end
return i -- returns the last user that was valid and printed
end