Today i found a two year old back Xbox 360 Wireless Controller, and decided to sell it. I wanted to test it first, of course. I started my Console and registered the Controller - No problems. I then started Oblivion and begun to test every element of the Controller - Sticks, Buttons, Bumpers, D-Pad etc. - Everything still works great. To test the Rumble function i confronted en enemy, he hit me - i felt no rumble, but the Controller disconnects. I reconnected it, he hit me again - the same result. I thought: Maybe the rumble command leads to this. So i connected it again, the enemy hit me again, but this time i was holding my shield up (i was blocking the attack), i felt the rumble and the Controller dosen't disconnect. I blocked about ten strikes - the Controller was still connected. I then took down my shield, he hit me - Controller disconnected. WHY?