Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A Real Dissapointment

It just isn't the Logitech I remember. My old Logitech mouse was in use for years and is still more reliable than my new LX7. The new mouse does work, but after awhile it stops responding so that I can't get any icon to respond. It starts working again when and if I hit restart. I give up. My next mouse will not be a Logitech...and that is a shame.