When it's cold I understand the IMU's can take time to warm up. It is no longer cold, The IMU takes from 4 to 10 minutes to warm up. (yellow flashing) Infact it takes so long for the IMU, that I get my home lock prior to them finishing. After the IMU warms, the GPS still goes though its process and locks, is that not odd? I get HL prior to the IMU warming? After the IMU is completed the GPS still has to set? I thought the GPS was required for HL to set? I have contacted the tech support for where I purchased and they are having a hard time helping me with this issue.