Cuisinart CPB-300 Compact Portable Blender

I bought this a few weeks ago and use it everyday for my morning shakes. The kids usually make a smoothie in the morning or after school. Works great with no problems. I am buying one for my Mom too.

I bought this one 2 months ago, usually heats up and stop while blending first glass of shake. I have to wait for atleast 10 minute for it to cool down. I returned and exchange with another. second one has the same problem. Looks like design defect in...