Crashes?!

Well I have yet to use on circuit, that will occur on May 20th. Have tried using the trip A-B mode from home to work, only owned for a couple days, but the program has crashed and when it does the data is lost completely. I noticed this on Lap Timer Pro on my iPhone as well. Just worried while out on track if the thing crashes that data is lost making this a bit worthless. So can only give it 3 stars at the moment. The potential is definitely there for a full 5.

Have ordered an external GPS receiver and OBD2 link suggested by Harrys site. Wont have them in time for the event, but next time for sure.

555sexydrive about Harry's LapTimer Grand Prix, v15.0.3