After you select the mouse type you enter the mouse test screen where it says "Please test the mouse".
1. Both buttons look strange when you enter this screen. Like there is something missing at the top and buttom edge of both buttons. After moving the mouse over both buttons they look OK. 2. When you are testing the mouse buttons by pressing on them and when you turn the wheel on the mouse the area with the above mentioned buttons flashes white. -- Live long and prosper!
