Try a soft reset, switch the hold switch on then off, then press down on the center and menu buttons at the same time (for a few seconds until the screen goes blank) and it will reboot, then try reconnecting it.
One hint: You'll find you may get even better response to your questions if you make your thread title relevant to your question -- we must have 10,000 posts that say "Please Help!"
Try a soft reset, switch the hold switch on then off, then press down on the center and menu buttons at the same time (for a few seconds until the screen goes blank) and it will reboot, then try reconnecting it.