Thanks, I just updated IOS and Go4 to 4.1.20, seems to not crash so far.
I didn't know what was going on yesterday as it had worked flawlessly for so long before that.
I have this problem too. I hadn't flown for a while so I thought I better fire it up before taking it out just to check its status etc. It worked fine as always but had the messages to update.
Normally I just do this without worrying too much about it.
So then I went to take it for a flight...