I had installed leapard onto my mac, i am now trying to install all of the apps, but when i type in my admin name and password i am receiving an error ("Sorry, you entered an invalid username or password") Before i installed leapard i would use the same username and password that i used to log on. Now i can only log on with that name but i when i use the log on name for installing it won't seem to work. Has anyone else ever had this problem? any ideas of what i should do?