I've had the same thing happen on my last three flights. Today I switch the autopilot from flight director control following the gps to autopilot heading control for vectors. After a few minutes ATC cleared me back on course. I entered Direct To on the 430W and switched from AP heading control back to EFIS flight director control. At this point the line was missing. Map range was at 40 miles and the line extended from my destination approximately 25 miles. Changing the map range did not extend the line to my aircraft. I have a screen picture if it will help. 3500/3400 non-s. Map data expired on 1-8-2016.