I've noticed the programme becoming very sluggish, and unresponsive to menu selection over a period of time. I suspected a memory drain, but Airnav are insistent that any memory leakage has been fixed with v1.4 onwards.
I have to say I'm not so sure about this. Selection from any menu becomes treacly after the programme has been running for a while, although the live display itself appears to be functioning OK. Changes of map, or selection from the Tools menu etc., almost brings the programme to its knees.
DC