A few days ago I kind of ran into a problem.  I use a ti 84+.  I tried to send something to my calc with ti connect and it gave me error: access is denied.  I tried again and my calc showed a down arrow over the blinking cursor at the home menu.  I checked the ram after that and it showed it was out.  Since i couldnt transfer any apps or programs i tried resending the OS. big mistake here.  It sent, but very slowly.  Since it was late i had to spend the next two days without my calc because i didnt have time to resend the OS. (The two days in the past MONTH i actually needed it).  So I tried a few hours ago and after sitting around for like an hour playing my ds i got the OS to finally transfer all the way.  The problem is that i still cant send apps or programs.  I tried using a different cable, taking out all the batteries (including backup), but I still cant send anything.  any suggestions? Please?