Been working this week and my laptop (MacBook Pro running 10.5.8) has started crashing, as in making a click and shutting down instantly whilst using capture one with no power cord. I'm only just starting to narrow down when it happens but so far has been fine with firefox and mail. Any ideas why this has started happening and how to solve problem. I've run disk utility (repair disk) and gone to activity monitor and quit all unnecessary running programmes. I've also been to my account log in and got rid of any auto start ups. I'm running capture one 4.8 which has been running without problems for just over a year. Any ideas?