Stopped working after 4 uses [SEP] I liked this flosser right up until I used it after the second time I recharged it.  It worked well until I tried to turn it off.  It did NOT turn off.  I tried pushing the 2 buttons in all the combinations I could think of and held them down etc.  Nothing worked.  It would not turn off even after all the water was gone.  I finally just let it runout of battery juice.  When I plugged it in and tried to turn it on it just blinked at me. Nothing.  I only used it 4 times.