I bought this mouse for my Gateway laptop and absolutely loved working with it. I upgraded to Windows Vista and did have trouble getting the laptop to discover the mouse. Finally got all that worked out, then one evening I had my hand on the mouse when there was a very loud pop and my hand buzzed. After poking at it for a while, I removed the batteries and one of the inside of the mouse was black! The batteries seemed to be intact so I assume it was the mouse itself that exploded. I loved the mouse but I'm not sure I will buy another one!