My PC doesn't recognize my Pen drive!

Hello,
I have recently formated my computer and now when I plug in my 2GB transcend Pen Drive niether the light blinks nor there is any auto play or Removal Drive in My Computer! The pen drive was working properly before formatting I dont think there is any problem in USB port and there is problem in softwares. My iPod shuffle is too having the same problem it also dont recharge niether gets read!
Please help me!
Thanx