BIG Problem. A couple of nights ago we blew the gray headgasket on the blender. I had another one so no big deal. Then last night the motor started overheating. Tonight I thought I should to get to the bottom of this problem. Filled the blender with ice and water---fired it up. There was a strange vibration. Then the motor almost stalled. You guessed it the whole lower end of the blender is shot. Went through my spare parts box and I had a whole new lower end for the blender---thats it on the left. Refilled the jar with ice and water---life is good. The blender has been rebuilt---now I have to get to Wal-mart to get some more spare parts.