Thinkpad Bluetooth Auto Sleep / 蓝牙鼠标睡眠，连接丢失
If you found your bluetootch mouse lost connection after some idling time. Especially when you are an owner of a new thinkpad model, like W530. You might need to check your bluetootch power option to disable "Allow computer to turn off this device to save power":
如果你的蓝牙鼠标经常断线（一般是空闲一段时间后），尤其对于新型号的thinkpad用户。请检查你的蓝牙设备电源选项:

Solution:
Device Manager > Bluetooth > Thinkpad Bluetootch > Properties dialog > Power Managment tab:
uncheck "Allow computer to turn off this device to save power"
设备管理器 > 蓝牙 > Thinkpad Bluetootch > 属性对话框 > 电源管理标签页:
取消勾选 "Allow computer to turn off this device to save power"