When i use the original Garmin Vehicle Power Cable on my 680t something strange happens. When i turn my gps on, it powers on, but instead of showing the usuals homescreen, only a charging symbols that shows the batterycapasity in % is showing. When i push on/off buttons one more time it turns off. The only way i can use the cable is that i turn the 680t on first before i use the power cable. Then all is normal. It can't be like this, or? In the settings i cant find anything, can someone help me ciq.forums.garmin.com/.../1270493.jpg